Gm 12 Bolt Rear End Identification

Just Differentials, Justdifferentials. For 6 lug rear ends, the 64-69 1/2 ton 2wd Chevy (and some GMC) trucks have a 12 bolt rear, about 60-61" wide (I measure them where the wheels bolt on). 5" 14 bolt semi float 6 lug will have the right mounts but you will need new u bolts and figure out how to get the driveshaft to work. New Dynapro Low-Profile Pro-Series disk brakes with the Chevy 5 on 43/4 bolt pattern. 1922- Eaton Axle Company buys back the Torbensen Axle division of Republic Motor Truck 1923 - Torbensen Axle purchases two spring manufacturing plants 1923 - Torbensen Axle officially becomes Eaton Axle and Spring, manufacturing was approaching 150,000 axles annually and 10,000 springs daily 1926 - Eaton Axle and Spring launches production of. 2 inch Pontiac axles, 10-bolt 8. my nova's rearend. Complete GM "A" Body Rear End Complete GM 12 Bolt Rear End for 1964-72 GM "A" Body cars. AAM has developed a series of axle and driveshaft components to make it easier for the installer to perform a repair or a complete replacement job. Differential Covers. Do you like Chevy Inline 6's? We can help you with all of the modifications needed. Compatible With 1964-1977 GM 10 12 bolt Rear Axle End Disc Brake Conversion Kit CROSS DRILLED ROTORS (N-3-1) 5. These numbers are located on the axle tubes on a 5 Lug Rear from a 6 Cyl 1971 chevy S/B truck. Many of these differentials are now more than 40 years old and are due for an overhaul. Interestingly, the Ford axle uses the exact same size of tapered roller bearings as the GM 12-bolt. Identify the gear ratio, the build date, the plant where it was assembled the work shift when it was assembled, and positraction source - if equipped. 675 inches). Eaton 12-Bolt Car Posi Unit JEGS Differential Installation Kit Lucas Heavy Duty Gear Oil (2 Quarts) Richmond Gear GM 12-Bolt Ring & Pinion Set Note: Please read the more details section as some differentials require special bearings which are not included. Carrier-bearing adapters are included for Ford 9” and 8. Differential Carrier Cases. com as a daily part of their ownership experience. These numbers are located on the axle tubes on a 5 Lug Rear from a 6 Cyl 1971 chevy S/B truck. Ideal for applications that have clearance concerns with trunk pans, pan hard bars or sway bars. Ring Gear Diameter: 8. Best thing to do is pop the rear cover. Visual identification markers include the number of differential cover bolts, bolt-in or c-clip style axles, axle splines and the presence of a pinion support. Our services also include 12 bolt rear-end restoration and rebuilding. 5" 14 bolt axle is also used in 3rd Generation Dodge Ram 2500 and 3500 trucks. 5" on B, C, E and later A-body cars. WE REBUILD TO YOUR SPEC'S. Choose the Axle Kit - Rear you need for your car or truck GM 12 Bolt Truck differential Quality & Customer Service Distributor Support Warranty Info About Yukon Calculators Product Sheets Y. In 1979, GM redesigned their Np203 lever assembly, they did away. 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. The GM B-Body cars, such as the Impala and Caprice, used a version of the four-link system, but it is a little more complicated than the A- and G-Body versions. 64-67 A bodies would be an inch wider than stock. 14 Bolt Axle Identification Chart October 26, 2018 If you're wondering which 14 bolt axle you have - full-float or semi-float, dual rear wheel or single rear wheel, slide-on drum or stud mounted drum - the chart below will help you figure it out. No need to crack open the diff cover. This rear end was available in a 10 bolt version only. They feature a massive 10. Rebuilt GM 14-BOLT Differential. 8 Rear-End; How to Narrow a Ford 8. Car 12 Bolt Race Axle (must use c-clip) 5 on 4. Chevy/GMC Trucks \ 88-98 chevy/gmc 1500 rear end swap a few inches shorter (what did you use) baha 12 mo Ever since I've been involved in sharing photos on the. 10 that will fit a 3-series carrier, and a different set for the 4-series. 07:1 axle ratio, non-posi, 12-bolt rear axle assembled on November 22, 67 or 68 by the Detroit Gear & Axle plant, second shift. Also contains data on axle shaft R&R and wheel bearing R&R and adjustment. The 10-bolt was used in all the low performance applications. it uses c-clips to hold the axles hafts in. the CJ-5s 81". This axle is commonly used with big engines and/or overly large tires. 5 10 bolt rear your 12 bolt is becoming rarer every year and is worth good money to the right person. Do an internet search and look for a site that shows the rear cover of a BOP 12 bolt and a Chevy 12 bolt for quick/easy identification. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 2 10 bolt rears axle tubes neck down on the ends, as the axles are are retained with c-clips inside the carrier sand do not have flared out axle tube ends. GM differentials come in a wide range of sizes. Car and truck axles come in a variety of gear ratios depending on their application and many aftermarket gear manufacturers extend that range even further with extra high and extra low gear ratios. The smaller GM 14-bolt has a 9 1/2-inch ring gear diameter. 1978 chevy k-5 blazer,350/350/203 3. It wasn't until late 1972 that the 10 bolt 8. I recall my 77 manual mentions all the GM axles, and says to consult the HD Truck manual for the 12. See our Drive Train Specialists Setup Specifications. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. The 10 bolt Chevelle rear end has the 8. Jeep Accessories, Jeep Parts -JeepHut Offroad is your destination for Jeep parts, Jeep accessories, Jeep repair and Jeep customization for all of your Jeep, truck four wheel drive and offroad needs. They are designed for Chevy 10 or 12 bolt axles 9" FORD FLANGE REAR BRAKE KITS CA-PROP. I know american classic has the decoder but can these numbers tell me the ratio of the rearend without removing the cover?. I've tried to read up on this but nothing has been very descriptive. Chevy rearends will have a casting date on the rearend at the bottom of the rear center section in a recessed area. Instead of using a C-clip to hold the axle in the housing, these axle assemblies use bolt-in axles, much like an 8. 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 for sale in Richfield, Ohio $1,295 Share it or review it. net: 1964-1972 Chevelle/El Camino generic rear axle information such as GM part numbers, rear end housing casting numbers & dates and wheel bolt identification. diff size or get the # off the in side gears. GM 10 or 12 Bolt Rear End Axle Bearing and Seal Set, 2 Bearings and 2 Seals PART NUMBER: SUS-328 Our Price: $39. 2 10 bolt rears axle tubes neck down on the ends, as the axles are are retained with c-clips inside the carrier sand do not have flared out axle tube ends. I've tried to read up on this but nothing has been very descriptive. The guy that I got it from claims that it is a 1965 12 bolt rear axle assembly with new 3:08 gears. A manufacturer code will be metal stamped on the axle tube adjacent to the carrier for field identification. In 1979, GM redesigned their Np203 lever assembly, they did away. GM 10 bolt front axle vs dana 44 vs dana 60 How to tell what you got 1973-1987 GM Trucks. ive always thought that on the driver side on the diff housing where the axle tube connects to the housing theres a code like gm 75,i always thought that meant that the rear end was built in the year of the number stamped after "gm" well i called in the 3 number code on the top of my axle tube from the passenger side which is KDU and they told me that the rear axle was produced from '74 to '77. 31 but now has a 3. The phrase, "more like a 10-bolt", is usually talking about the size of the ring gear and/or strength of the carrier. This rear axle was available in GM's high-performance intermediate cars, full-size vehicles and light-duty trucks. Although Timken does have very few made in other places. The shop doing the work says the drive side of the R&P is wasted. This means parts are not interchangeable, which can come back to bite you later if you buy the wrong assembly. 10 Ratio Ring and Pinion - 2-2021-410 for your Truck or Jeep at 4 Wheel Parts. 31 but now has a 3. Make: Model: Description: Pinion Bearings: Carrier Bearings: Pinion Seal O. Camaro/Firebird 82-2002 9" Moser Bolt-In Rear End Assembly, Price will vary due to options, but starting price is $2300. also bought new 3. SUPER NOVA 3. Freshening these GM 12-bolt rearends was both cheap and easy, something your wallet and your sanity can appreciate during any car project! The inside diameter of the side gear is also splined. Project Big Bad Chevy One Ton Axle Swap: Trucks & 4x4 : Our big and bad Chevy pickup project gets a whole lot badder and stronger with the installation of stronger than the current 12-bolt we. ChevelleStuff. For instance, the truck 12-bolt uses a smaller inner pinion-bearing (1. Some pictures to help. net: 1964-1972 Chevelle/El Camino generic rear axle information such as GM part numbers, rear end housing casting numbers & dates and wheel bolt identification. This kit includes both the upper and lower rear control arms designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body; this includes Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix and Cutlass. This means that you need to positively identify the axle assembly before you begin work. 1955-58 AF -- 31-3200 All (3. 12 Bolt Rear End; Drag Race Floater Rear End Home » Shop Drag Racing Parts » Ring and Pinion Gear Sets » GM Install Kits » GM 12 Bolt Rear Pinion Bearing For. Terms & Conditions. 1970 Chevelle 12 Bolt Rear End Axle Ckk 10 9 L78 410. 55 rear end center section is an original used two-pinion type with cast arma-steel housing. All Moser 12 Bolt Housings are designed and manufactured in the U. One is a car version with a grooved cover plate, while the truck-version cover plate is raised. 5" axle, which was available in standard and limited-slip. 65 WARNING - click for more information. Intake Manifold Bolt & Stud Kits. The most popular rear end around is no doubt the Ford 9 inch unit, it is used by restorers, street rodders and racers alike, regardless of what brand of car the axle is going in. For GM 12 bolt Only. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. 5" diameter ring gear and pinion with a 3rd bearing at its nose that prevents gear deflection under severe loads. posted: 2019-10-28 07:53. 625" axle tube end to axle tube end. Plenty of Chevy inline 4 and 6 performance parts in stock and ready to go. For more information about the different brands of Ring & Pinion gears listed above, please consult our Ring & Pinion page. A manufacturer code will be metal stamped on the axle tube adjacent to the carrier for field identification. Freshening these GM 12-bolt rearends was both cheap and easy, something your wallet and your sanity can appreciate during any car project! The inside diameter of the side gear is also splined. Whether you're looking to maintain, optimize, or upgrade, we offer competitive pricing on G2 GM 8. 5", as found in the Chevy Vega, up to the larger GM 11. 1999 Expedition Engine Motor 4. 12 BOLT TRUCK REAR END The differences are mainly with the pinion bearing size and the ratio/offset breakdowns (different carriers with certain ratios). 12-bolt Chevy, 2. 5", common under 3/4 and 1 ton trucks from Chevrolet and GMC. Ok, so im going down the road the other night and all of the suddden I start getting this horrible howling noise comming from the rear end. The Ford version uses larger axle shafts and different lube flow strategy. No need to crack open the diff cover. 5" x 33" x 16" Hose And Tubing Assortment Including Pressure Washer Hose And Heater Hose, Contents Of Pallet. Use of these names, logos, and brands does not imply endorsement. 36 No10 boltDana DC 3. GM 12 bolt carrier identification/ questions, * with pics * When I bought my 57 it came with a 12 bolt posi that I was told was out of a 67-69 camaro, which is the same width as the stock 57 rear, which I believe is 60. 5" or not, you can measure the distance between the very bottom bolt for the cover and the next adjacent bolt (either right of left), it will be 3-3/4" for a 8. GM / Chevy - Differential Identification Shop by your differential. DTS has gathered "the best of the best" products from major manufacturers under one roof and supported them with a staff of experienced, technically competent people. Basically what I want to pull out of the decode is if it's a camaro 12 bolt, what gear it came with and if that gear was posi. These have the stamped steel housing but the hubs/outers look similar to 14-bolt outers. 50” drop for12-bolt). 73 Eaton Code Ratio Posi Notes Plant DA 3. For more information about the different brands of Ring & Pinion gears listed above, please consult our Ring & Pinion page. GM Drag Racing Axle Bearings with O-Ring: DESCRIPTION: Dimensions: Part Number : Olds/Pont Ball Bearing: 1. FORD, CHEVROLET, DODGE, CUSTOM. They feature a massive 10. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 875Cover Bolts: 12Ring Gear Bolts: 12Spline Count: 30Dropout: FalsePinion Support: FalseCarrier Breaks: 2. If the driveshaft spins ~4. Plan Axles Custom Axles Cases & Spider Gears Dropouts & Pinion Supports Kits Spin Free Kit Positractions & Lockers Ring & Pinions Spindles Spools Tools. GM 10 bolt front axle vs dana 44 vs dana 60 How to tell what you got 1973-1987 GM Trucks. short video for gtsdesigns so he can help I. Visual identification markers include the number of differential cover bolts, bolt-in or c-clip style axles, axle splines and the presence of a pinion support. Our Ring and Pinion sets are reasonably priced and are the highest quality aftermarket gear sets available. 675 inches). 10Rear Suspension: SolidPinion Nut Size: 1-. 1955-58 AF -- 31-3200 All (3. DTS has gathered "the best of the best" products from major manufacturers under one roof and supported them with a staff of experienced, technically competent people. Small bolt-pattern hubs measure 4" between alternate wheel studs as opposed to 4. Early Ford Beam Axle Identification and Dimensions; How To Box-In a Differential / Solid Axle Rear-End Housing; How To Decode Ford Part Numbers; How To Install a Limited Slip/Posi Unit in a GM 10 Bolt 8. 75" rear end w/ 3. The crossbar houses the load bolts that apply pressure to the bearing caps. 3 1/2 times, 3. 5" to accomodate the larger yoke found on the 1971-2 axles. Chevrolet enthusiasts around the world have used the Chevy 12 Bolt rear end in countless street and race car applications. 90 & numerically higher gear) carrier? I know it has a Richmond 4. It has a film strength second to none. Complete Axle Assemblies. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. Our Ring and Pinion sets are reasonably priced and are the highest quality aftermarket gear sets available. The main difference between the truck and passenger was the pinion gear and pinion bearings. This axle is commonly used with big engines and/or overly large tires. In any event, be aware that there are two different bolt patterns in an 8-3/4. 5-inch axle assembly that was used in some 1971 and 1972 Buick, Oldsmobile, a few 1969 through 1972 Pontiac vehicles, as well as the 1970 through 1972 Monte Carlo. * These ratios were offered with the optional 12 bolt rear end(455 only) A sticker with the code was applied to the left brake drum. 5 rearend uses an oval cover and the housing has two small cast-in protrusions near two of the bottom cover bolts. BMR 1" lowering springs, trailing arms and toe-links, Prothane solid poly subframe bushings, JDP Motorsports rear upper control arm bushings, Texas Speed long-tube headers with 2" primaries, modified FULLY 3" Magnaflow competition catback. Note 2: Block components, such as main bearings are the same as the Chevy 216. The 70 2wd and 70-81 4wd have a 6 lug 12 bolt that is a couple inches wider, but will fit under a Task Force truck as long as you don't get too wild with wheel/tire width. Designed after the Super Stang 9", the Super Stang 8. AAM 725 SeriesGM 7. RANDYS carries GM differentials from the small 6. Pretty sure it's a GM truck 12 bolt. However, the smaller 10-bolt unfairly gained the reputation as a weak and inadequate rear end for high-performance applications. WE REBUILD TO YOUR SPEC'S. In competitive racing, you cant leave anything to chance. , 1/4' wall), custom alloy axles (30, 33, or 35 spline. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. Jeep Accessories, Jeep Parts -JeepHut Offroad is your destination for Jeep parts, Jeep accessories, Jeep repair and Jeep customization for all of your Jeep, truck four wheel drive and offroad needs. Boost Brothers Recommended for you. All stock come with 1969 Impala body. * These ratios were offered with the optional 12 bolt rear end(455 only) A sticker with the code was applied to the left brake drum. Cars & Trucks Motorcycles Other Vehicles & Trailers Boats Powersports Parts. 31 No12 bolt, policeDana DF 3. 1971-1975 : Front of Right hand (passenger) tube,about 3" from carrier; 1970 : W/C-lock axles-Front of Right hand (passenger) tube,about 3" from carrier. This rear end was available in a 10 bolt version only. 2019 and newer models: May use a similar 12 bolt rear cover that is slightly larger and not compatible with this cover. 90) AG -- 31-3200 Overdrive (4. 5" axle, which was available in standard and limited-slip. 65 WARNING - click for more information. Dana axle identification is located on axle tube between Steering Shock Absorber Bracket and the Carrier. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. GM 10 or 12 Bolt Rear End Axle Bearing and Seal Set, 2 Bearings and 2 Seals PART NUMBER: SUS-328 Our Price: $39. Example: BL 1122 G2 For a 68 or 69 model, this is interpreted as a 3. 10Rear Suspension: SolidPinion Nut Size: 1-. Home Rear Ends. Chevy stopped installing the 12-bolt in 1972, leaving the 10-bolt to. The 70 2wd and 70-81 4wd have a 6 lug 12 bolt that is a couple inches wider, but will fit under a Task Force truck as long as you don't get too wild with wheel/tire width. 5" Full-Float 14-Bolt rear axle. 2 10 bolt had their own round 10 bolt rear cover with a splash lip on it. FORD, CHEVROLET, DODGE, CUSTOM. 2", then they are not far off, but the 8. 5" -1968-70 Oldsmobile 12-Bolt Cover/10-Bolt Gear GM 8. Find a quality Chevrolet Nova Rear Axle Assembly and other used Auto parts from the top auto salvage yards. GM 12 bolt carrier identification/ questions, * with pics * When I bought my 57 it came with a 12 bolt posi that I was told was out of a 67-69 camaro, which is the same width as the stock 57 rear, which I believe is 60. Prices and availability are subject to change without notice. 8 is easy to install and is believed to be the best hooking bolt-in suspension anywhere! It is fully adjustable for pinion. The code was also stamped in the axle housing to the left of the carrier. It's a half ton so I doubt a dana would have been put in it. Kit Number: Buick : 68-70 : All Mid Size (except Skylark Canadian Model) 8. Filthy Motorsports offers a wide range of OEM and aftermarket parts for just about every axle out there so whether you're rebuilding an old Dana 44 for your Jeep CJ8, building a Ford 9 Inch for your drag racer, or putting together a fully custom Dana 60 for your rock crawler, we have the parts you need to make it happen. Axle codes by year [] 10 bol[] 10 bolt ID tipIf you don't have the codes on hand to identify if a 10 bolt rear end is an 8. In 1970 the rear end was built in both 10 and 12 bolt versions. Some 1960s and 1970s GM cars are not equipped with the common Chevy 10- or 12-bolt axle assemblies. Axle Type Casting No. Prices and availability are subject to change without notice. 5-inch axle assembly that was used in some 1971 and 1972 Buick, Oldsmobile, a few 1969 through 1972 Pontiac vehicles, as well as the 1970 through 1972 Monte Carlo. This attribute also makes the Dodge and GM axles appear very different, because of the different cover used. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Didn't realize Dale was showing it on the back of the tube ,close to the center section. housing ends, 1350 series pinion yoke, conversion u-joint, and 33 spline axle shafts - at no extra. 5" 14 bolt full float is way over kill and the wrong 8 lug pattern. 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. It has numbers on the case:GM15,3856525 with a N above it and the Vin# is C154 - 6Z137529. The easiest way to identify a 12-bolt rearend is obviously by the 12 bolts holding the rear cover onto the axle housing. 08: 40/13: XE: ZE: 1965. Complete Axle Assemblies. 5" axle, which was again offered in standard form and limited-slip. The posi manufacturer codes are D for Dana, E for Eaton, and W for Warner. 2”, then they are not far off, but the 8. We offer a complete line of rear end parts for the GM 8. Edited March 13, 2014 by bdbake01. Do you know if it's a 12 bolt or 10 cover. MTG Individual Cards-Obsianus Golem SPLD Artifact Uncommon MAGIC CARD (ID) ABUGames MTG Alpha qrhenb1545-wholesape cheap - www. The pinion gearshaft. 12 BOLT CARRIER INFO. It can be argued that all A-body 8-3/4 axles are small bolt-pattern, as the A-body 8-3/4 was built until '72 or so. We can build you a chevelle 12 bolt ,any ratio ,blasted and painted , new gears, new bearings , new posi , new axles , backing plate to backing plate. GM 10 & 12 bolts are usually on the web on the front on the center section-left side as shown. Stamped on the front top of the passenger side axle tube is THB W166 1 E. Their rear end has a ring gear of 8. 12 BOLT rearend ID. All stock come with 1969 Impala body. GM 12 Bolt Truck. 5" or not, you can measure the distance between the very bottom bolt for the cover and the next adjacent bolt (either right of left), it will be 3-3/4" for a 8. 875-inch 12-bolt Positraction was the most widely used in 1965-'72 Chevrolet passenger car applications. It is the GM 8. 10 bolt BIA. 12-Bolts to Glory The GM 12-bolt debuted in 1965 and was mass-produced until 1972. Was in 68 Chevelle Also fits Malibu el Camino and all A body GM cars from 1968-72. 5" and 3-1/4" for a 7. A Chevy 3/4 ton pick-up may have a 14 bolt semi-float rear axle or a 14 bolt full-floating axle. enter your search here. CHEVROLET 12-BOLT PASSENGER AND 1/2 TON TRUCK Weld-On Housing Ends These babies are used when shortening your axle housing and using custom axles. Note 2: Block components, such as main bearings are the same as the Chevy 216. 5" Full-Float 14-Bolt rear axle. 12 Bolt Passenger | GM 8. Commonly 7 or 8. BMR 1" lowering springs, trailing arms and toe-links, Prothane solid poly subframe bushings, JDP Motorsports rear upper control arm bushings, Texas Speed long-tube headers with 2" primaries, modified FULLY 3" Magnaflow competition catback. It looked OK, but we wanted to check out the the clutches before we stab this posi into our 12 bolt differential that is destined for our project 65 Impala SS. CHEVROLET 12-BOLT 1/2-TON TRUCK Bearing Set This bearing, race and seal set is the finest money can buy. GM 10 bolt front axle vs dana 44 vs dana 60 How to tell what you got 1973-1987 GM Trucks. 1 day ago · Custom ordered 2012 6MT RS/SS on 11/25/2011. 0L V8 SFI Gaseous Engine Chevrolet Low Cab Forward for sale at Lee Partyka Chevrolet in Hamden near New Haven. 10 bolt BIA. Chevy 12 Bolt Truck Rear End Girdle - Original Made from 356-T6 cast aluminum, these girdles incorporate a reinforced crossbar. 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. 9 out of 5 Assault Racing Products A9584 GM 12 Bolt 8. 3240 Thank you Chevy, gmc, c10, c20, c30, k10, k20, k30,. Differential Carrier Cases. ive always thought that on the driver side on the diff housing where the axle tube connects to the housing theres a code like gm 75,i always thought that meant that the rear end was built in the year of the number stamped after "gm" well i called in the 3 number code on the top of my axle tube from the passenger side which is KDU and they told me that the rear axle was produced from '74 to '77. Car 12 Bolt Race Axle (must use c-clip) 5 on 4. 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 control arm-mounting ears on top of this 7. Dana design axles from 1977 thru 1980. Plan Axles Custom Axles Cases & Spider Gears Dropouts & Pinion Supports Kits Spin Free Kit Positractions & Lockers Ring & Pinions Spindles Spools Tools. 5" and 3-1/4" for a 7. The Blazer continued until 2005. This attribute also makes the Dodge and GM axles appear very different, because of the different cover used. 1971-1975 : Front of Right hand (passenger) tube,about 3" from carrier; 1970 : W/C-lock axles-Front of Right hand (passenger) tube,about 3" from carrier. The rear axle identification code consists of a three letter prefix indicating the gear ratio, four digits indicating the assembly date as month/day, and a single letter suffix indicating the manufacturing location. Axle codes by year [] 10 bol[] 10 bolt ID tipIf you don't have the codes on hand to identify if a 10 bolt rear end is an 8. 12-Bolt Passenger - 2. This package will come with New stock brake shoes, hardwear and drums. It has a film strength second to none. Early Ford Beam Axle Identification and Dimensions; How To Box-In a Differential / Solid Axle Rear-End Housing; How To Decode Ford Part Numbers; How To Install a Limited Slip/Posi Unit in a GM 10 Bolt 8. Chevy Nova Forum > Body, What is the oil capacity of a 12 bolt rear end? I. 5" ring gear GM axle. I bought a rearend a couple months ago with the ID of GM 51 NF3896838. 99+ silverado was a mix of disc and drum brakes so those won't bolt up, 00+ tahoe is coil sprung with discs and that won't bolt in either. It features an 8. 2-inch 10-bolt and 12-bolt axles, while the other divisions used. 875" 12 Bolt axle including ring and pinion sets, axle rebuilt kits and bearings, differential covers, upgraded axle shafts, heavy duty u-joints, oil, and more. 14-Bolt Rear Axle Disc Brake Conversion. Begin by setting proper pinion bearing preload, total turning preload, and ring gear backlash. 5" rear end strength for an S10 The weak points of the 8. 76 & down / 3. Tech article all about driveshafts. Before you start, you need to identify your parts. 5" found in Monzas and others is better, it probably won't hold up very well over 300 hp. Five basic types have been used in Fords, Mercurys, and Lincolns since 1957. We can build you a chevelle 12 bolt ,any ratio ,blasted and painted , new gears, new bearings , new posi , new axles , backing plate to backing plate. 8", Dana 60, Chevy 12-bolt, Mopar 8-3/4” and early Olds rearends. No Friday night or Saturday calls please. 2 carrier and ring and pinion. 3l-4l60e loaded 6" on 35s~driven daily. 0 items in cart Checkout. Complete GM "A" Body Rear End Complete GM 12 Bolt Rear End for 1964-72 GM "A" Body cars. We can build you a chevelle 12 bolt ,any ratio ,blasted and painted , new gears, new bearings , new posi , new axles , backing plate to backing plate. The crossbar houses the load bolts that apply pressure to the bearing caps. 42 POSI REAR END 30 SPLINE 12 BOLT STRENGTH 8. Correct? Casting on rear housing can be unreliable and best to phyically check the rear out. Commonly 7 or 8. We specialize in rebuilding, repairing, restoring and modifying rearends. Didn't realize Dale was showing it on the back of the tube ,close to the center section. Chevy Camaro with GM 12 Bolt Passenger Car Differential / with GM 8. AAM 725 SeriesGM 7. Rear Axle Codes. If you jack up the rear end and spin the wheels, you can figure out what rear end gears are in your housing. Edited March 13, 2014 by bdbake01. Plan Axles Custom Axles Cases & Spider Gears Dropouts & Pinion Supports Kits Spin Free Kit Positractions & Lockers Ring & Pinions Spindles Spools Tools. the smaller 14 bolt, with it's 9 1/2" ring gear, is a semi-floating design. The 70 2wd and 70-81 4wd have a 6 lug 12 bolt that is a couple inches wider, but will fit under a Task Force truck as long as you don't get too wild with wheel/tire width. Stamped on the front top of the passenger side axle tube is THB W166 1 E. Easy to use parts catalog. New housing with 30 spline Bolt-In axles. GM 12 Bolt Truck. Rear Axle Measurements. This unit was removed from a running driving car but is being sold as is. Better Axles and Bearings For the GM 12-Bolt. Chevy rearends will have a casting date on the rearend at the bottom of the rear center section in a recessed area. The GM version uses a paper gasket and the Ram version uses a re-usable rubber gasket. Before you start, you need to identify your parts. 2" Differential 1967, Rear Gear Redline Series Gear Oil by Yukon Gear & Axle®. 5" axle, which was again offered in standard form and limited-slip. The carrier goes into the rear end housing. 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. Description. GM Positraction rearends have been around since 1957, in several different ring-gear diameters, but the 8. No calls after 8 p. GM differentials come in a wide range of sizes. 5 10 bolt rear your 12 bolt is becoming rarer every year and is worth good money to the right person.