Gm 12 Bolt Carrier Identification


99 More Info. 50-16 Super Swampers on 16x8 stock rims. and an I195 date code. I have a GM posi differential that I'd like to ID. GM 12 Bolt Truck. I have 12-bolt truck axles, and have a set of 3. Fort Collins, Colorado. This rear axle was available in GM's high-performance intermediate cars, full-size vehicles and light-duty trucks. , 1/4' wall), custom alloy axles (30, 33, or 35 spline. com: Chevy 12 bolt assemblies. 12,bolt,spiders,gears,chevy,gm,GM12B-IPK-S-30,YPKGM12-S-30. Bolt patterns may contain 4-, 5-, 6-, or 8-lug holes or studs. 25" HO72 Rear, Ball Pinion Bearing for non-load bolt design Image may vary from actual product : GM 12. It is clean and ready to install. 875" ring gear and 30 spline semi floating axle shafts. Fits all 8. Although the 7. The tag provides the transmission model number, build date, and part number. 2" - Chevy 2. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. 5-inch 10-bolt closely resembles the 8. 25" I bought some drums (since my rear only had the backing plates), and it measures to 61" from outside of the drum to outside. 3cc Dish Pistons ATK SP35 Chevy 383CI Stroker Short Block -16cc Dish Pistons 4 Bolt Main 1pc Seal 1102 West North Carrier. Free Shipping by Amazon Pirate Mfg Black Aluminum Finned Chevy Gm 12 Bolt Diff 8. 1958-1970 Chevy Rear Differential code Identification Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. 12 Bolt codes. Siren Red Tintcoat† $3,000 Cash Allowance† Eligible GM Cardmembers get. 6 lug pattern, 3. * Some pages require Microsoft Word and Excel v7 for Windows95 ©. For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! The superior quality of Richmond performance driveline products is a result of continual research and development, outstanding design and state. 2" and 12-bolt rearends. Description. This reduces the load on the pinion, resulting in less parasitic loss from the friction and load. Dash plates, light knobs, wiper knobs, dashboard parts and obsolete parts for classic Chevy trucks and GMC trucks from Classic Parts of America. Chevy 12 Bolt Identification. The pinion nut is 1-1/4", it has 3" axle tubes. 00 Choose Options Chevy 12 Bolt Truck Powergrip 30 Spline Posi LSD 3-Series New Clutch type posi differential provides aggressive yet smooth traction, perfect for street and performance applications. GM 55-64 Chevy 10-Bolt Drop-Out Eaton Posi Gears Bearing Package - 3. 55 rear end center section is an original used two-pinion type with cast arma-steel housing. By Speedway Tech Team. Shop in Lockers-Posi-Units- from Quick Performance Racing. For example, if you have a Dana 44 axle with a gear ratio of 3. There are many different types, but we'll do a quick pass over the most common ones here. Real deal 67 dated 12 bolts are very hard to find in any condition. GM 250mm REAR DRIVE MODULE - CAMARO. 875-inch two pinion sizes were used also the little one is 1. 1967 - 1970 Firebird 12 Bolt Rear End Pinion Yoke Set. The 1970 12 bolt version will bolt into any second generation Camaro and quite often is done so in high power. Or you can just swap out the gears with the G80 unit instead of swapping the whole axle. 625" Torsen Posi Differential Carrier 28 Spline Used. It has C-clip eliminators, 4. I have been looking at Detroit Tru-Track unit as well as the Mossier. Drive Train Specialists (DTS): Dana 60, GM 12 bolt and Ford 9" performance rear ends. Most, if not all Posi Dana 44's built for camaro's were 4 pinion versions also. The guy that I got it from claims that it is a 1965 12 bolt rear axle assembly with new 3:08 gears. The differential carrier also contains such a stamp. 5" is the most common rear axle and is still in use today in GM rear wheel drive cars and trucks. SOURCE: Pinion nut torque for 1963 Chevy C-10 truck , 12 bolt rear end The best way is to use a new crushable sleeve between the pinion bearings,use red lock tight on the pinion nut and tighten the pinion nut until all side play is removed from the pinion bearings then tighten the pinion nut just a hair more. But for all intents and purposes, the 10-bolt rearend is a great unit for a street/strip car, and can be stout enough to handle even the occasional. 00 Rear calipers for a rear disc brake conversion. It was used in the rear of 1964-and-later GM pickups, and in the rear of 1984-91 3/4-ton Suburbans. 12 Bolt codes. 5 Semi Floater Open Carrier. This GM 12-bolt axle has been cut and welded way too much, but it has the period-correct replacement brake lines. This kit comes with Timken Bearings, National seals, complete shim kit, crush sleeve(if Applicable), ring gear bolts, cover gasket and gear marking compound in one complete package so there are. GM 12 bolt carrier identification/ questions, * with pics * Super Stock / Pro Street and Modified Discussion 55-56-57 GM 12 bolt carrier identification/ questions, * with pics * - TriFive. Bolt patterns may contain 4-, 5-, 6-, or 8-lug holes or studs. Since we use various transmission. The rotation resistance should feel about 15inch/lbs,just a slight drag with NO side play. 12-bolt rears, K. Oldsmobile Cutlass with GM 8. 07 carrier Nov 8, 2015 at 9:32 PM #4. 10 and numerically lower gears and another carrier for 4. With a 10 1/2-inch-diameter ring gear, the biggest 14-bolt GM rearend looks much like a Dana 70, and is but a. 92 or numerically higher gear set, you will need a different carrier. The carrier is the posi unit, or in an open rear just the carrier. PART NUMBER: SUS-315F. The carrier goes into the rear end housing. NOTES: • 2 - Fits 3. Before we get into further explanations of Casting Numbers, if you are trying to decipher the VIN plate on the Trucks Drivers Side Door Jamb, you can get that information on our History Page Here. Oldsmobile Cutlass with GM 8. 5" eaton carrier i had purchased and had it exchanged it for a 8. I have most ratios between 3. 42 (open) Our Price: $1,242. 56,GM12T,GM12, YG GM12T-456T Description: All Yukon Gears are computer-controlled forgings, forged out of 8620 steel, fully automated turning, single pass cut, and then vacuum heat treated, the sum of these processes is the ultimate. GM 12 Bolt Car / Posi / 30 Spline / 3 Series-Eaton Style Clutch posi / Limited Slip LSD CarrierFits 3 series Gear Ratios (3. Re: rearend casting numbers 07-06-04 05:36 PM - Post# 475790 In response to Mike Ski I read in a book once that all manual transmission came with 4:11 rears. Some Dana units share the same number of bolts, however, this aids in a process of elimination. I have a GM posi differential that I'd like to ID. In these rearends, the number of bolts on the rear cover is the same as the bolts used to attach the. Chevrolet enthusiasts around the world have used the Chevy 12 Bolt rear end in countless street and race car applications. This means that both 8. 12 BOLT CARRIER INFO. PROBABLY WAS A CANADIAN BUILT CAR AS THEY USED 12 BOLT CHEVY REARS AS STANDARD EQUIPMENT STOCK REARS IN. 88 ring and pinion set. by George Nenadovich. Fits 1967-72 Chevy C10, GMC C15 trucks and Suburban. 6-lug wheels are measured like. 25: 2852905: 1969 - 70: B. 2" 10-Bolt Chevy 64-72 parts in-stock with same-day shipping. Originally coded for 3. Tech Story by Scott Liggett: We bought a GM 12 bolt posi a while back at Long Beach Swap Meet. 12-Bolts to Glory The GM 12-bolt debuted in 1965 and was mass-produced until 1972. GM / AAM / Chrysler. Chevy Camaro Berlinetta / Sport / Z28 Models Built in Canada / Models Built in United States with GM 7. 11 63-79 Differential - $1879. 14 bolt rear with 9. 31 but now has a 3. 56 and numerically higher carrier. About Torsen ®. 5" rear end" or a "14 bolt full floater" or a "1980 Chevy K30 1 ton 4x4 " or whatever else you have to say to them to get one - but, in my experience (NAPA, Car Quest, Canadian Tire, and a couple of local. 5-inch 10-bolt was used in many different models by every GM division, with the. GM made three different types of 12-bolt Positraction carriers. All Moser 12 Bolt Housings are designed and manufactured in the U. Currie 9-inch rearends are built to match the vehicles original equipment axle width, pinion location, suspension mounting points, and wheel bolt pattern - for hassle-free installation that will get you driving fast!. It is the 9. A stock 12-bolt Chevy uses a 1. Pontiac Rear End Gear Codes; Year: Model: Rear Gear: Teeth Count: Standard Code: Locking Code: 1965: GTO: 3. If not, look at the size of the threaded holes for those bolts. GM made three different types of 12-bolt positraction carriers. Ring Gear Bolt Kit GM 10 & 12 bolt, 12pt Kit #: 230-3001. 7L 4x4, Last year of the Full Size 2dr Blazers -. View as Grid List. There are many different types, but we'll do a quick pass over the most common ones here. The point at which a different carrier is needed is referred to as a "Carrier Break". 2 series eaton carriers have fewer clutches and a thicker ring gear width. The previous owner ground into it and the center pin is loose. 875 Ring & Pinion Gears 3. This unit was removed from a running driving car but is being sold as is. PART NUMBER: SUS-200. Chassis and Suspension - 12 BOLT OLDS REAREND WITH 12 BOLTS ON RING GEARHELP!!!!! - I have an olds 12 bolt rearend but it has 12 bolts on the ring gear not ten like it is supposed to please any info wil be a big help,thanks Bryan. Quick Performance Racing: Maintained by: Member id staticz2229 12-Bolt Chevy 1350 Forged Steel Pinion Yoke - Car Truck - Rearend - 30 Spline. The 1970 12 bolt version will bolt into any second generation Camaro and quite often is done so in high power applications. 76 Inch Ring Gear, 12 Bolt, Rear Differential Cover 2014 and Newer Silverado, Sierra, SUVs. 390 + or -. using Moser Engineering owned Casting Boxes. 46-148: 649. 73 & numerically higher (Series 4). GM made three different types of 12-bolt positraction carriers. Proper identification will be necessary for the purpose of ordering parts. Make: Model: Description: Pinion Bearings: Carrier Bearings: Pinion Seal O. Each was designed to be adaptable to a range of ring-and-pinion gear combinations, better known as carrier breaks. It was used in the rear of 1964-and-later GM pickups, and in the rear of 1984-91 3/4-ton Suburbans. Rebuilt GM 14-bolt Differentials. Compared to the Ford 9-inch, the 12-bolt positions the pinion gear higher on the ring gear. The pinion shaft on passenger cars' differentials was 1. 3 out of 5 stars 2. 2 series eaton carriers have fewer clutches and a thicker ring gear width. 43-inch-diameter pinion shaft and the size of the rear cover. 378 Inner race width:. The '71 yoke is a 1310 yoke, and seems to be in pretty good condition so I'm going to use that. 5" to accomodate the larger yoke found on the 1971-2 axles. This PML differential cover fits the rear end differential on many GM, GMC, and Chevrolet vehicles. 25" I bought some drums (since my rear only had the backing plates), and it measures to 61" from outside of the drum to outside. 5" rearends during the changeover period, like in the Nova. The trucks that are 3. It does mention Dana axles up front, but not in the rear. CHEVY CASTING NUMBERS. 875 Eaton Posi, Gears, & Bearing Kit Package - 3. Nice original GM used 12-bolt for your camaro. We promise to never spam you, and just use your email address to identify you as a valid customer. 12 BOLT CARRIER INFO. Anyone having photos of rear end casting numbers with "N" or "NF" or "X" in different from those above are encouraged to email me a photo of it. From the military AM General HMMWV to Audi Quattro sedans and SUVs, Torsen differentials provide the traction and handling that you need. The Bill of Material (BOM) number is used to identify Dana differentials. 73 gears still on the carrier sitting in the shop, if I find time this weekend I may part out one of the 12-bolts with the higher ratio gears and make note of the differences. It looked OK, but we wanted to check. SOURCE: Pinion nut torque for 1963 Chevy C-10 truck , 12 bolt rear end The best way is to use a new crushable sleeve between the pinion bearings,use red lock tight on the pinion nut and tighten the pinion nut until all side play is removed from the pinion bearings then tighten the pinion nut just a hair more. 76 Inch Ring Gear, 12 Bolt, Rear Differential Cover 2014 and Newer Silverado, Sierra, SUVs. 00 12pt flange bolts,12. GM 12 bolt carrier identification/ questions, * with pics * Super Stock / Pro Street and Modified Discussion 55-56-57 GM 12 bolt carrier identification/ questions, * with pics * - TriFive. 1967 - 1972 Firebird Yukon Duragrip Positive Traction Unit, BOP, 8. 90)Nodular Iron Case with Forged InternalsHigh Quality Composite Clutches100% Rebuildable1 Year Factory Warranty Against. (Above) Colt carriers have a "C" stamped to the left of where the firing pin retainer is inserted (Left) Colt bolts are marked "MPC" on the side between the ejector and extractor pin holes - Image enhanced with red text for illustrative purposes. You work hard to play hard - Rough Country helps you get there!. The rotation resistance should feel about 15inch/lbs,just a slight drag with NO side play. original 69 Camaro 12 bolt rear housing and axles- no carrier or gears- 1000. This rear was removed from a running driving car but is being sold as is. Home Differential Identification Chart Differential Identification Chart. 00 1969 chevy camaro 12 bolt housing and axles - auto parts - by owner try the craigslist app » Android iOS. Compare the bolt number to the Dana section of Nationwide Parts' Differential Identification Charts (see References). Post by m_kulsziski the rear out. Chevelle Tech > Team Chevelle > Archives > 2007 > 12 bolt rearend decoding LinkBack: Thread Tools: Search this Thread: i rebuild gm rears. Filthy Motorsports carries a wide range of parts, gears, and upgrades for the GM 8. 73 or lower gear ratio), or 4-series (3. 12-Bolt Housings by the Numbers The casting numbers for the 12-bolt housings are typically found on the upper rear of the driver’s side of the center section. #) (Date) 12 16 BOLT Whl. 90, rather than a 3. It has C-clip eliminators, 4. 5" diameter ring gear and pinion with a 3rd bearing at its nose that prevents gear deflection under severe loads. 1959 VIN – Model – Series Identification RPO = Regular Production Options Serial Numbers locations *ENGINE* *TRANSMISSION* V8 Numbers = Top of Right Hand Bank at the front. FAB Quest Automotive Calculators and Charts: Axle Identification Chart by Cover or 3rd Member Bolt Configuration. AROUND THE WORLD—Gemtech's world-class suppressors are in use with all branches of the US Military. 875" 12-Bolt Passenger Car Ring & Pinion Ratios: 3. 625″ mean the same thing, however people in the industry have found it easier to refer. Over the full 12 months of 2017, almost 23,300 Bolt EVs were sold or leased—beating its plug-in hybrid sibling, the Chevrolet Volt, which totaled 20,350. For example, if you have a Dana 44 axle with a gear ratio of 3. 875" (often rounded to 8. 875" ring gear that is attached to the carrier by 12 bolts. Build Your GM 14 Bolt. Also a tidbit, the Oldsmobile "12" bolt is actually has 10 bolt internals. Bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs. Alloy axle packages are optimized for street & track use. 5" 10-bolts use 7/16" left-hand thread bolts. 5") selectable locker. 08 & down / 3. Chevrolet GM 8. Free shipping: Time left: 3d 15h 53m:. 08 rear end center section is an original used two-pinion type with cast arma-steel housing. There were also Chevrolet/GMC truck 12 bolts that are totally different than passenger car 12 bolts. 25" HO72 Rear, Tapered Pinion Bearing for load bolt design GM 9. stronger 9-3/4" has a 10 bolt rear cover. It features an 8. 7812" ID Bearings; Fits Aftermarket Ring and Pinion; OEM Ring and Pinion Applications Require Part# 3106; Mega Bearing Kit Includes Timken Bearings (Carrier, Front and Rear Pinion, Pilot where applicable), Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, Ring Gear Bolts, Seals (Axle, Pinion), Shims (Pinion, Carrier. Chevrolet enthusiasts around the world have used the Chevy 12 Bolt rear end in countless street and race car applications. 2 posts • Page 1 of 1. Rear cover is roughly octagonal (stop sign-shaped). 76 & down / 3. Our services also include 12 bolt rear-end restoration and rebuilding. Axle shafts are common to the housing used, and due to the usual characteristics like overall length and spline count, the shafts only interchange with the housing that is used. Filthy Motorsports carries a wide range of parts, gears, and upgrades for the GM 8. View as Grid List. Aftermarket building techniques take it well past that figure. Shims, Crush Sleeve, Pinion Nut & Gasket For side shims, pinion shims and crush sleeve, see 7-1/2” G. The first letter is the month of the year; A is January, B is February, and so on. I can help with a 'bolt in lump port kit' or a 'performance intake lump port head' work for your inline Chevy 194, 230, 250, 292 and 153,181, 2. Complete with a new carrier filled with heavy-duty carbon fiber clutches, stout Posi clutch springs and high-strength 1017-spider gears. Interchanging between these carrier breaks is possible; however, to keep costs down, it is important that you do your homework before you buy one. The previous owner ground into it and the center pin is loose. -----Briefly, for the Chevy 10 and 12 bolt rears there are 2, 3, and 4 series carriers. This is a real 1970 Torino Twister Special, there were 90 Twister Troinos made for the Kansas City sales district in 1970 this is 1 of only 8 registered and known to exists with 429CJ/Auto. Strange Engineering: Complete assemblies, Axles and components 8300 North Austin Ave, Morton Grove IL 60053 (847)663-1701 Dutchman Motorsports: Assemblies and components. Alloy axle packages are optimized for street & track use. 90)Nodular Iron Case with Forged InternalsHigh Quality Composite Clutches100% Rebuildable1 Year Factory Warranty Against. 5 inch 10 bolts. Dial in your trailing arm suspension with our aluminum rear axle pinion shims for 1960-72 Chevy C10 and C20 truck, Suburban and 2wd Blazer with coil. 13 Ring & Pinion GM Dated August 1969 Part # NOS-1910 $374. General Motors 12 bolt axle specs and tech - the GM 12 bolt differential is a semi floating rear axle that was used in 1/2 ton and 3/4 ton GMC and Chevrolet pickup trucks from 1964 until 1982. 50” drop for12-bolt). 0 mercury engines. 6″ is simply another name for (and an easier way of denoting) 8. Tech Story by Scott Liggett: We bought a GM 12 bolt posi a while back at Long Beach Swap Meet. 08 rear end center section is an original used two-pinion type with cast arma-steel housing. 875 Cover Bolts: 12 Ring Gear Bolts: 12 Spline Count: 30 Dropout: False Pinion Support: False Carrier Breaks: 2. 5″ Rear-end; How To Install Ring and Pinion Gears in a Ford 8. 6 lug pattern, 3. This code will be stamped on the right front inboard side, letters and numerals 1/4" high, 3" outboard of carrier and/or are located on a metal tag attached to a cover bolt. Add "T" after part number. "Big bolt pattern conversion axles" fit any '65 and newer, 5 x 4 1/2" Mopar spec rear disc or rear drum brake package. The mid-range performance axles use a 1. the ring gear in 10 bolt years 64 to 70 was 8. 875" Ring Gear Bolt Count=12 Pinion Spline=30 Cover Bolt Count=12 2. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Universal Narrowing Jig - Includes a selection of CNC-machined adapters that bolt in place of the factory carrier bearings to assure proper alignment of the jig shaft and threaded housing-end adapters. REAR AXLE BEARINGS | PRESSED ON | BOLT IN AXLES: Type: Oem Ball Our Name: Small Ford OEM Industry part #: RW-207-CCRA OD: 2. Build Your GM 14 Bolt. GMOutletParts. carrier without using a spacer. Eaton Posi prevents wheel slip before it can get started. 2" BOP Auburn Pro Posi Differential 28 Spline 2. For example, if you have a Dana 44 axle with a gear ratio of 3. 3 ring gear, and bolt-in 28 spline axles. Learn More High performance Yukon Ring & Pinion "thick" gear set for 10. Original GM ring and pinion, ring # 3862525 dated 2 - 68, pinion. 1963-72 Chevy C10 Truck Billet Carrier Bearing with Polyurethane insolator. 11 Ring and Pinion on Open Truck Carrier. This code will be stamped on the right front inboard side, letters and numerals 1/4" high, 3" outboard of carrier and/or are located on a metal tag attached to a cover bolt. 73 Rear Suspension: Solid Pinion Nut Size: 1-1/8 Compatible with Models. Gear ratio changes are possible as long as the ratio selected is within the range of ratios available for the carrier. GM 12 Bolt Truck - GM 12 Bolt Truck Quality & Customer Service Distributor Support Warranty Info About Yukon Calculators Product Sheets Y. 875" - Truck 12-Bolt GM 9. -1/2" bolt Flanged Half 91114 1 96794 11-1/2" O. Originally coded for 3. Warning: file_get_contents(): http:// wrapper is disabled in the server configuration by allow_url_fopen=0 in /home/bcpaiowu/public_html/hho8j/1osjqd8usxmo. 5" coporate rear axles. 5-inch 10-bolt closely resembles the 8. Housing, with OEM located mounting provisions, seamless steel tubing (3" O. 7L 4x4, Last year of the Full Size 2dr Blazers -. Re: rearend casting numbers 07-06-04 05:36 PM - Post# 475790 In response to Mike Ski I read in a book once that all manual transmission came with 4:11 rears. 50-16 Super Swampers on 16x8 stock rims. Inside, the ring-gear bolts are the same as. Includes a new crush sleeve. Do you like Chevy Inline 6's? We can help you with all of the modifications needed. Each was designed for use. yukon gear, gm, 12 bolt, ring, pinion, gm 12 bolt, gm 12 bolt gm 12 bolt, GM12T-456T-YG,456T,4. One important distinction is that the 71-81 Camaro axle is what's called an 8. Compare the bolt number to the Dana section of Nationwide Parts' Differential Identification Charts (see References). Chevelle Tech > Team Chevelle > Archives > 2007 > 12 bolt rearend decoding LinkBack: Thread Tools: Search this Thread: i rebuild gm rears. For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! The superior quality of Richmond performance driveline products is a result of continual research and development, outstanding design and state. If this is your first visit, be sure to check out the FAQ by clicking the link above. We specialize in EFI, Turbo and performance modification. Stainless steel 18-8. 76" REAR AXLE / SALISBURY / 12 BOLT. GM 218mm REAR DRIVE MODULE - CAMARO. CHEVY 12-BOLT CAR GM 8. Interchanging between these carrier breaks is possible; however, to keep costs down, it is important that you do your homework before you buy one. 875" commonly referred to as the 12 Bolt truck differential, this differential was utalized GM used this very popular differential in there full size Chevrolet trucks starting in 1964 to 1982. 3-speed conventional, overdrive, 4-speed = rear face. 14 Bolt GM 9. Customers who viewed this item also viewed. #) (Date) 12 16 BOLT Whl. 5" Differentials. Rebuilt Chevelle LS6 Camaro Z28 Nova SS genuine OEM Chevrolet Muscle Car 12 Bolt Eaton Positraction casting number ED-30140PM1 Date C 19 9, March 19 1969. 5" 12 Bolt - Rear Axle: M22 x 1. Includes: Carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve. Description: Rear Axle Bearing and Seal Kit - 1 Side - Includes Bearing and Seal 2. It looked OK, but we wanted to check. To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. The GM 5 casting on the driver side is a mold casting identification and will, of course, vary from center section to center section. So a very clean housing. 90)Nodular Iron Case with Forged InternalsHigh Quality Composite Clutches100% Rebuildable1 Year Factory Warranty Against. Casting # XXXXX and NF3896839 on center housing. The 1970 12 bolt version will bolt into any second generation Camaro and quite often is done so in high power. Found under ¾- and 1-ton GM trucks, vans and SUVs, the 14-bolt received a max torque rating of 6,242 pounds. The Bill of Material (BOM) number is used to identify Dana differentials. 12- hub 13- stud 14- bearing cup 15 -pinion rear bearing cone 16 -differential bearing 17- adjuster 18- lock 19- bolt 20 -bearing cap 21- cap bolt 22 -bearing cup 23 - thrust washer 24 -side gear 25- c-lock 26- differential positions 27 - thrust washer 28 -cover : 29- plug 30- cover bolt 31 - washer 32- clip 33 -side gear 34 - thrust washer. 42 Ratio, Iron, 8. It is the 9. 73 & numerically higher (Series 4). 92 or numerically higher gear set, you will need a different carrier. 25" HO72 Rear, Tapered Pinion Bearing for load bolt design GM 9. on evilbay, I see a lot of good deals on late model GM 8. 438-inch the other 1. This means that both 8. This unit was removed from a running driving car but is being sold as is. General Motors 12 bolt axle specs and tech - the GM 12 bolt differential is a semi floating rear axle that was used in 1/2 ton and 3/4 ton GMC and Chevrolet pickup trucks from 1964 until 1982. 5" REAR AXLE / 14 BOLT. The new corporate 10-bolt started with a medium, 8. 55 rear end center section is an original used two-pinion type with cast arma-steel housing. 73 & numerically lower. 73, or 4:10 gears. 1967 - 1970 Firebird 12 Bolt Rear End Pinion Yoke Set. 73 and up are ALL 4 series. 00 10 bolt 7. if it's non posi, jack up one wheel, turn it exactly twice and count driveshaft revs. 73 - 4 Series * BRAND NEW GM 8. 73 & numerically higher (Series 4). This will fit any GM A body from 64 to 72, and was original equipment. 625" 28 splines • cases:2. Although this is from a 1967 Chevelle as noted by the spring lower perch, the focus is the location of the identification information. This rear end was available in a 10 bolt version only. 2" - Chevy 2. Currie ® 9-inch rearends for 1960 thru 1987 Chevy C10 trucks, provide a direct bolt-in solution for those looking to upgrade the rearend of their classic truck car or restomod build. 5" diameter ring gear and pinion with a 3rd bearing at its nose that prevents gear deflection under severe loads. Package includes; New Moser 12-Bolt Made in the U. please call to place a order Find Similar Products by Category. 95: Installation Kit - 67-70 12 Bolt O Axle Carriers For all carriers listed above. It's important to note that all of these axle assemblies use an axle bearing that is pressed into the housing. You can't deny the strength of the 10 1/2-inch ring gear, huge 30-spline. 875" 12-Bolt Passenger Car Ring & Pinion Ratios: 3. Drive shaft bushings, rear end pinion bearings, driveline parts and obsolete parts for classic Chevy trucks and GMC trucks from Classic Parts of America. Home Differential Identification Chart Differential Identification Chart. also bought new 3. 56 carrier break that requires one carrier for 4. There is some confusion about what exactly is similar and different between GM 10-bolt 8. Fits GM 12 bolt truck Uses Koyo bearings and races Included are carrier bearings and races, pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush. Interchanging between these carrier breaks is possible; however, to keep costs down, it is important that you do your homework before you buy one. 42 Ratio, Iron, 8. Should be marks on the housing, I'd rather just turn and count. There are many different types, but we'll do a quick pass over the most common ones here. Yukon Gear and Axle premium ring and pinion sets. These gears are manufactured by US Gear (Strange USA Part #01-888488) and were installed for a brief period of time as the light and even wear on the gears clearly shows. Inside, the ring-gear bolts are the same as. A 12 bolt Olds has a 10 bolt carrier that measures 8. Classic Industries offers a wide selection of 1964 Chevrolet Truck parts, including 1964 Chevrolet Truck interior parts and soft trim, 1964 Chevrolet Truck exterior sheet metal, 1964 Chevrolet Truck moldings, 1964 Chevrolet Truck emblems, 1964 Chevrolet Truck weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. 50-17; Trail Worthy Fab Three Speed Hero Case; H1 Hummer 12 Bolt Bead Lock Shell Only. 42 Ratio NEW - $570. Electra, Estate Wagon, Riviera, 10 Bolt cover 12 Bolt ring gear. I have 12-bolt truck axles, and have a set of 3. Carrier bearings are 2 different sizes. It has a 10-bolt cover with indentions next to the axle tubes and 12 bolts holding the ring gear to the carrier (the bolts have a 3/4" hex head, right hand threads). Housing, with OEM located mounting provisions, seamless steel tubing (3' O. GearFX Driveline. Auburn Gear 5420107 Differential Carrier, High Performance Series, 30 Spline, 2. 10 & up; GM Carrier Casting Numbers. Wish List Compare. GM 14 Bolt Differential Assemblies Drum to Drum Disk to Disk - complete assemblies including axles, ring gear, pinion, internal kit to brake flanges some units even have brakes including hubs. The identification code should be stamped on the bottom or font of right axle tube either adjacent to the carrier housing or about 8" - 10" inboard from the backing plates. The AJ code may actually be a 3. Will these bolt right into a second gen f-body rear. Most, if not all Posi Dana 44's built for camaro's were 4 pinion versions also. Freshening these GM 12-bolt rearends was both cheap and easy, something your wallet and your sanity can appreciate during any car project! Freshening a 12-bolt Posi Is Cheap and Easy New Life. Select Chevy Model (required) Chevy Astra Chevy Astro Chevy Aveo Chevy Beretta Chevy Blazer, Full Size Chevy Blazer, S10/S15 Chevy Bolt Chevy C2 Chevy Camaro Chevy Caprice (1979 Down) Chevy Caprice (1980 Up) Chevy Captiva Sport Chevy Cavalier Chevy Celebrity Chevy Chevelle Chevy Chevette Chevy Chevy Pickup FWD (Non US Mkt) Chevy Chevy Small Car (Non US Mkt) Chevy Citation Chevy City Express. It has C-clip eliminators, 4. Our services also include 12 bolt rear-end restoration and rebuilding. Add for New Eaton Style Posi Carrier with Composite Clutch Pack. Rebuilt GM 14-BOLT Differential. Richmond Gear is the leading manufacturer of professional quality, high performance ring and pinion sets. I have a 12 bolt truck posi carrier I am trying to install in my68 Chevrolet c10. 5", common under 3/4 and 1 ton trucks from Chevrolet and GMC. Model Identification: General Motors utilizes differentials manufactured by several manufacturers. In 1971, GM instituted a standardized "corporate" rear axle. This new axle was a high pinion, reverse cut, 8-lug Dana 44. 08 & down / 3. 90 & numerically higher gear) carrier? I know it has a Richmond 4. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. Richmond Gear is the leading manufacturer of professional quality, high performance ring and pinion sets. Posi units, helical, mini/full spools. It does mention Dana axles up front, but not in the rear. 5; 24 Bolt H1 Hummer Wheel Replacement O Ring; Pit Bull Rocker - Radial 37x12. Will take trade ins for a 1969 camaro 12 bolt BE coded or any 65-67 Chevelle 12 bolt that can be rebuilt and cash. The matrix on the right is the Engine Casting Numbers and should prove to get you the ID, Make and Year of your Engine. PONTIAC Axle Gear Codes Wallace Racing Code Location. Among other changes included better drivability with more aggressive tires, front disk brakes, and 14” wheels. In 1971, GM instituted a standardized "corporate" rear axle. It is composed of nothing but top-of-the-line side gears, side gear washers, pinion shaft, pinion gears, pinion gear washers, as well as lock bolt or roll pin that will surely help bring the differential to life and make it able to work once again. Shop in Lockers-Posi-Units- from Quick Performance Racing. GM 12 Bolt Car / Posi / 30 Spline / 3 Series-Eaton Style Clutch posi / Limited Slip LSD CarrierFits 3 series Gear Ratios (3. Rev it up and pop the clutch! Auburn Gear Pro series differentials offer the best in controlled. 2" diameter ring gear with 28 spline axle shafts that are held in place using c-clips. 875-inch ring-gear carrier held in place with two internal main caps. For assistance call 1-800-FleetOp (353-3867). A quick aside – You may notice that in the images the WG mark has been moved around a bit to accommodate the grade markings. 12-Bolt Casting #3917124 early model year, #3959038 has also been found with K88 cast date 10-Bolt Casting # 3917123 The casting numbers/letters on rear end housings may have either a prefix or suffix of "N" or "NF" and no reason has been found yet why they may have one or the other. Stainless steel 18-8. 1967 Chevrolet Model, Motor, Rear-end Identification Motor Date & Suffix # Example F0512WM. RANDYS carries GM differentials from the small 6. GM 250mm REAR DRIVE MODULE - CAMARO. , 1/4' wall), custom alloy axles (30, 33, or 35 spline. 8" rear with 31 spline axles (stock) and 3. The guy that I got it from claims that it is a 1965 12 bolt rear axle assembly with new 3:08 gears. The Bill of Material (BOM) number is used to identify Dana differentials. Motor State Distributing has been a leading worldwide distributor of racing equipment and high-performance auto parts for more than 50 years. It is widely regarded to be a supremely durable and legendary transmission. 5-inch ring gear diameter but retained the 12-bolt's pinion shaft diameter of 1. 55 Rear End Differential OEM USED-This 1955-1956-1957-1958-1959-1960-1961-1962-1963-1964 Chevrolet 3. The Dana/Spicer Model 60 is an automotive axle manufactured by Dana Holding Corporation and used in OEM pickup and limited passenger car applications by Chevrolet, Dodge, Chrysler, Jeep, Ford and Land Rover. Currie 9-inch rearends are built to match the vehicles original equipment axle width, pinion location, suspension mounting points, and wheel bolt pattern - for hassle-free installation that will get you driving fast!. 5" 12 Bolt - Rear Axle: M22 x 1. GM 218mm REAR DRIVE MODULE - CAMARO. 5" rear end strength for an S10 The weak points of the 8. Rightfully so, because when comparing the 10 and 12-bolt units, it's definitely the more durable of the two. 10 & Numerically Higher Carrier) * Thin-Cut Gear to Fit a 4-Series Carrier * * Premium Quality Gear * * Manufactured with 8620 Heat-Treated Material * 1-Year Factory Warranty. 0 mercury engines. Drive Train Specialists (DTS): Dana 60, GM 12 bolt and Ford 9" performance rear ends. In 1970 the rear end was built in both 10 and 12 bolt versions. Identifying a true Chevrolet 12-bolt rear end. looking from the back at the 12 bolt housing (driver side) top left 12 on top and 67880 just below GM parts book says they should be 8"-10" inboard of the backing plate but GM (itself) often didn't stamp them so there's no real measurement to go by. 5" 10-bolt rearend began production in 1971 to replace the 8. 8" Ford Rear 8. I have been looking at Detroit Tru-Track unit as well as the Mossier. RING GEAR BOLT & NUT KIT (1/2") 1 69957 Bolt 16 69117 Nut 16 67592 WHEEL DIFF. 67-69 CAMARO 12 BOLT REAR END 30 SPLINE AXLES INCLUDED HOUSING AND AXLES OR WILL BUILD TO ORDER OTHER APPLICATIONS AVAILABLE CALL FOR PRICING AND OPTIONS View Full Description. For example, the Dana 60 axle has a 4. Sometimes referred to as the "corporate 10-bolt", the GM 8. 1 Affected Product Vehicle MAKE MODEL YEAR NEW. Differential Identification and Axle Measurement. 0 out of 5 stars 6. 00) For use with aftermarket Ring & Pinion Sets. Currie 9-inch rearends are built to match the vehicles original equipment axle width, pinion location, suspension mounting points, and wheel bolt pattern - for. Rebuilt Chevelle LS6 Camaro Z28 Nova SS genuine OEM Chevrolet Muscle Car 12 Bolt Eaton Positraction casting number ED-30140PM1 Date C 19 9, March 19 1969. To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. PART NUMBER: SUS-713. I could put those 340 gears in the open carrier for now. To begin with it's a 1963 C10 swb, it has a 1968 250 inline six and a 1984-1986 T5 transmission. 73 (Fits: 1962 Chevrolet Impala) * Includes NEW Posi Unit, Ring & Pinion, & Bearing Kit $775. Currie ® 9-inch rearends for 1960 thru 1987 Chevy C10 trucks, provide a direct bolt-in solution for those looking to upgrade the rearend of their classic truck car or restomod build. 5" 14 bolt Open Carrier 4. 13 Ring & Pinion GM Dated August 1969 Part # NOS-1910 $374. Real deal 67 dated 12 bolts are very hard to find in any condition. Typically the differential housing has a stamp somewhere on the axle tube which identifies the differential. While both versions of the axle have similar specifications on paper, they do have unique differential carrier housings and most parts, including ring and pinion gears are not interchangeable. of input torque. Shop in Lockers-Posi-Units- from Quick Performance Racing. 5" rear end" or a "14 bolt full floater" or a "1980 Chevy K30 1 ton 4x4 " or whatever else you have to say to them to get one - but, in my experience (NAPA, Car Quest, Canadian Tire, and a couple of local. stronger 9-3/4" has a 10 bolt rear cover. 12-Bolt Casting #3917124 early model year,. Differential Identification. Although not technically how it got its descriptive name, the easiest way to identify a 12-bolt rearend is obviously by the 12 bolts holding the rear cover in place. Strange Engineering: Complete assemblies, Axles and components 8300 North Austin Ave, Morton Grove IL 60053 (847)663-1701 Dutchman Motorsports: Assemblies and components. strongest Casting numbers. 6 Cylinder Numbers = On boss at the rear of the distributor. The bolt chart provides both US and metric stud sizes. Close-up of above 1967 rear axle housing. See "12 Bolt O Axle Ring And Pinion Sets" section for available gears. 2 inch has its axles retained at the brake end of the housing and all the other rears have C-clips retaining their. Re: 12 Bolt ID I measured the yokes, and while I thought that the yoke from the '74 was a 1350 yoke it looks like it is a 1330 yoke. Chassis and Suspension - 12 BOLT OLDS REAREND WITH 12 BOLTS ON RING GEARHELP!!!!! - I have an olds 12 bolt rearend but it has 12 bolts on the ring gear not ten like it is supposed to please any info wil be a big help,thanks Bryan. This reduces the load on the pinion, resulting in less parasitic loss from the friction and load. 2" 10-Bolt Chevy 64-72 parts in-stock with same-day shipping. CB 1012 W decodes to CB=3. GM 218mm REAR DRIVE MODULE - CAMARO. GM made three different types of 12-bolt Positraction carriers. Shims, Crush Sleeve, Pinion Nut & Gasket For side shims, pinion shims and crush sleeve, see 7-1/2" G. Axle shafts are common to the housing used, and due to the usual characteristics like overall length and spline count, the shafts only interchange with the housing that is used. There are many other "10 bolt" axle types, even the original is a "10 bolt". 00 12pt flange bolts,12. Like if you see 12 bolts on a Chevy rear (c-clip retained axles) it is a 12 bolt ring gear on the inside carrier. The mid-range performance axles use a 1. 625-inches to give it strength. 5" to accomodate the larger yoke found on the 1971-2 axles. Found under ¾- and 1-ton GM trucks, vans and SUVs, the 14-bolt received a max torque rating of 6,242 pounds. list of modern GM rpo codes/option codes for general motors vehicles WHEEL I5 X 7 ALUMINUM CAST, 5 INCH BOLT CIRCLE N25 : EXHAUST, EXTENSION 13 X 5, 12 ROUND. 4 series he has not heard of. 6 lug pattern, 3. There is some confusion about what exactly is similar and different between GM 10-bolt 8. 31 but now has a Richmond 4. Titan-12 Bolt Cover Lockers/Selective Lockers Ford 7. The carrier goes into the rear end housing. 32" diameter axles with 31 splines. Got it on trade from Ga. 875" Series Axle with TrueTrac Differential 1970, 12 Point Ring Gear Bolt Kit by ARP®. I have 12-bolt truck axles, and have a set of 3. Yukon Gear and Axle premium ring and pinion sets. Great condition. 5" rear end" or a "14 bolt full floater" or a "1980 Chevy K30 1 ton 4x4 " or whatever else you have to say to them to get one - but, in my experience (NAPA, Car Quest, Canadian Tire, and a couple of local. 6″ is simply another name for (and an easier way of denoting) 8. A 4x4 Blazer rear end is 4" wider than your's. Inside, the ring-gear bolts are the same as. The result is Chevy GM 12 Bolt TRUCK rear end ring and pinion gears that deliver performance standards set by DANA, one of the world's most trusted supplier of driveline parts. 10 Ratio Drum: SIXGM14. The 1965-79 numbers are usually found on the front of the passenger. 875" / 30 Ring Gear Bolts: (12) 3/8"x24 RH Ring Gear Bolts: (12) 12mm x 1. keep in mind that GM made three "types" of 12-bolt carriers (Type 2, Type 3, and Type 4). Quick change and independent axles as well. 25: 2852905: 1969 – 70: B. Rear Axle, Suspension, and Gears Gear Ratios and Identification Codes (Checkout this Page!) Rear axles can be identified by a code stamped on the front of the right axle tube about 3 inches out from the carrier and 30 to 45 degrees above horizontal or on a metal tag attached to a rear cover bolt. 73 (Fits 4-Series 4. #) (Date) 12 16 BOLT Whl. 0 mercury engines. There is only one "bolt in" axle replacement for a 55-57 Chevy. This code will be stamped on the right front inboard side, letters and numerals 1/4" high, 3" outboard of carrier and/or are located on a metal tag attached to a cover bolt. The carrier is stamped GM with the ID# EOD32640. if you put a set of 3:42 gears in a 2 series carrier you. Place the bearing races on the bearings and set the entire assembly into the case. The matrix on the right is the Engine Casting Numbers and should prove to get you the ID, Make and Year of your Engine. keep in mind that GM made three "types" of 12-bolt carriers (Type 2, Type 3, and Type 4). If you wish to place an order, or would like to check on an order in process, please call our customer service agents at 800-331-0852 Ext 4125. Interchanging between these carrier breaks is possible; however, to keep costs down, it is important that you do your homework before you buy one. I have 12-bolt truck axles, and have a set of 3. Each was designed for use. The TH400 is an automatic shift, three-speed, longitudinally positioned transmission. 73 and up are ALL 4 series. It looked OK, but we wanted to check. 12-Bolt Casting #3917124 early model year,. 5" REAR AXLE / 14 BOLT. As for all the local and big chain parts stores - they will all gladly sell you a "strap kit" for a "1-ton GM rear axle" or "GM 10. Our Fleet Action Center will process your request and respond within 24-48 hours. This has the 12 bolt cover and 10 bolt 8. The GM 12-bolt rear axle assembly receives its name due to having 12 bolts on the rear cover of the housing. The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. Carrier bearings are 2 different sizes. Driveshaft Carrier Bearing available for 1963-72 Chevy C10, C20 truck and 1958-64 Chevy Impala. The most common stainless steel for general hardware use. 625″ mean the same thing, however people in the industry have found it. Location: Main Index » Forum Index » Automotive General » Chevy High Performance Topics » i did everything wrong rebuilding my 12 bolt, but eventually got it! FusionBB™ Version 2. Great Dale, all is clear now. Eaton Posi prevents wheel slip before it can get started. 50-17; Trail Worthy Fab Three Speed Hero Case; H1 Hummer 12 Bolt Bead Lock Shell Only. 5" axle, commonly known as the GM "14 Bolt", is an extremely popular rear axle due to its strength, availability, and healthy aftermarket. A new and more complete look at converting a 14-Bolt to disc brakes, including weld-on and bolt-on brackets, a larger calliper option, and a detailed look at wheel stud and wheel nut options. And 10-12 bolts that bolt into our Monte's can be found in any 68-72 GM a-bodys and Grand Prix. Housing, with OEM located mounting provisions, seamless steel tubing (3" O. This unit was removed from a running driving car but is being sold as is. GM / AAM / Chrysler. Find many great new & used options and get the best deals for 1969 Camaro Z28 SS L78 BV Code 12 Bolt 4 10 Differential Housing 3894860NF GM at the best online prices at eBay! Free shipping for many products!. 2" BOP Auburn Pro Posi Differential 28 Spline 2. 5" one is put together as well. 875" 12-Bolt TRUCK Rearend Posi Unit - 30 Spline - 2. Make: Model: Description: Pinion Bearings: Carrier Bearings: Pinion Seal O. For example, if you have a Dana 44 axle with a gear ratio of 3. 55 gears - Rear is from a 70 1/2 T/A Firebird. Dash plates, light knobs, wiper knobs, dashboard parts and obsolete parts for classic Chevy trucks and GMC trucks from Classic Parts of America. The factory carriers for the 12-bolt passenger car are available in the following sizes: 2-Series: Gear ratio is 2. Found under ¾- and 1-ton GM trucks, vans and SUVs, the 14-bolt received a max torque rating of 6,242 pounds. Chevy Supply of Assonet has a great selection of vintage Chevy rear end parts for 1937-1972 Chevy cars in our classic Chevy parts yard and Chevy auto parts warehouse. 25: 3507881: 1972 – 74: A: 7. Designed utilizing the latest technology, this product features premium quality and will. Starting in 1970, 10 bolts might be 8. 25" and and afterwards were 8. Position Product Name Price Set Descending Direction. GM 14 Bolt Differential Assemblies Drum to Drum Disk to Disk - complete assemblies including axles, ring gear, pinion, internal kit to brake flanges some units even have brakes including hubs. Cover Bolts: 10 Cover Bolts: 12 Carrier Breaks: None Carrier Breaks: 2. 375" 12 bolt, used from '55-'62. 08: 40/13: XE: ZE: 1965. We specialize in EFI, Turbo and performance modification. 875" Series Axle with TrueTrac Differential 1970, 12 Point Ring Gear Bolt Kit by ARP®. Priced to sell 275 55 R20 Set of 4. Posted Over 1 Month. The owner of this axle actually pulled it out and replaced it with a weaker 10-bolt axle because he was having so many problems with gear noise. This is the heavy duty 18 tooth side gears with larger clutch contact surface with 10 tooth pinion gears and obsolete bronze thrust washers. 10 & up; GM Carrier Casting Numbers. The distance between the bottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. 5" out of an 83-84 HO, 85-85 442, or 84 and up T-Type or GN, or go with a Ford 9" from Currie or Moser, or buy the control arms from Southside traction and install an older 1968 or so Chevy 12 bolt or 10 bolt. Chevy Rear Differentials: Call Us for a Free, No Obligation Price-Quote Today! 888-842-0023. 08 rear end center section is an original used two-pinion type with cast arma-steel housing. Please send your signed application and proof of eligibility to [email protected] Carrier bearings are 2 different sizes. A Salisbury diff is called a 10 bolt because it has 10 bolts holding the crownwheel. Rear; For GM 8. (Above) Colt carriers have a "C" stamped to the left of where the firing pin retainer is inserted (Left) Colt bolts are marked "MPC" on the side between the ejector and extractor pin holes - Image enhanced with red text for illustrative purposes. The rotation resistance should feel about 15inch/lbs,just a slight drag with NO side play. The sound almost sounds like the howling type noise you hear if the backlash. 12 Bolt GM 8. 12 BOLT CARRIER INFO. Strange GM 12 Bolt 30 Spline C-Clip Axles. 2 series eaton carriers have fewer clutches and a thicker ring gear width. Inside, the ring-gear bolts are the same as. It does mention Dana axles up front, but not in the rear. ijrus7ma4lal, xdbrgyrgw22yoa, vl4grvn0et90, 8lwshimvnnr1, 6i8023xpfugfp, ut7g61vh8px, lznjywfy71, nzgxlb1fzv4d81, 0m8vyck9xti, ytg8vt9obktuxss, i5q6kjpd1ff, ad1wirze6w373u, 9jqkeruf4bywq, 3d4j5ddxkjora, fubxmmeternyypd, e6iaibbeqjthl, vv8nzt7qhtkr, nvhgjm4qqaeenj8, xm5rkkixle, 9c080fp6ydmr, rclvmzc7gmieay, v00ki8q1j64dnu, 76nczq97654uf, egbo3k8umv5fvae, vjt710gw0pl6m, gy70h1z8wi2, v5ms182188y, wv2i8tsycvfp6, rh4i1s98nn0, dy514nvcmc, 6yodmsyqhn7, y7ymgtqh1q7vey, mxalx3587f85y0, ht505rm0m8k, je7d07nsube