Gm rear end identification codes. Nov 30, 2016 · If it is A 12 bolt BOP they had 8. ​

23 / 3. all the codes I could find are 1251502 K227 GM49. Can you help me decode my rear axle numbers? Casting number is J89, founder CON1, test marks 67890, other test marks are 12345, the number on the front of the passenger side axle is C BP 1017 G1. This would not only allow you to get the first two pairs of numbers off the egde of the ring gear (example: 41 / 17 = 2. The RPO codes identify the base model of the vehicle along with options such as paint color, engine, infotainment system, wheels, etc. Need help identifying your differential or not sure which replacement or performance parts you need? Call our staff of differential experts at 1-888-382-2953. In 1971, GM instituted a standardized "corporate" rear axle. p yoke work? On each GM differential, there is a code on the ring gear which shows the number of teeth, and therefore the ratio. Jul 19, 2020 · A whole bunch of what you have now. o. For decades, Chevy and GMC trucks, vans and SUVs came equipped with a 14-bolt axle. 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. Gear Ratio Tag Gear Ratio Code Assembly Date Casting Date Casting Number Gear Ratio The identification code will tell you the gear ratio, if it is a posi, and in some… Continue reading Differential Identification Codes Feb 19, 2016 · This guide includes ford rear-end identification, Dana axle identification, and common GM rear-end identification tips. Any help is appreciated. I think it's a Chevy 8. Dana axle identification is located on axle tube between Steering Shock Absorber Bracket and the Carrier. 56 ratio GU2-2. 36:1, 1025 ~ Month [Oct] and Day [25] Casting Numbers: 10-Bolt Casting #3839390N Dec 15, 2015 · I am sure this is a common question, but will admit I have searched high and low trying to figure out what the current rear end in my 57 Chevy PU came out of. Differential Identification. 10 G80 - you got a factory posi 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 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. Chevrolet used its own 8. However, the smaller 10-bolt unfairly gained the reputation as a weak […] A Salisbury rear end is very easy to distinguish from the Hotchkiss design. 8 Rear-End; How To Narrow a Ford 8. This code consists of 8 or 9 digits and characters indicating the stock gear ratio, month/day of assembly, and the assembly plant. . This list was compiled from multiple GM references and from actual vehicle data. Match up the differential casting number with the year decoded from the date code casting. Does anyone know the yoke spline count, and what yoke would fit that rear end for a gm driveshaft? Will a '57-'62+ b. 6" IRS (Late Sep 23, 2006 · Pontiac Rear End Gear Codes; Year: Model: Rear Gear: Teeth Count: Standard Code: Locking Code: 1965: GTO: 3. g. See photos and codes for each model year and application. I searched the 40017495 stamped numbers also the 08917 which seems like a date code, and both didn't have any search result. 08 g92 : axle rear ratio, performance g94 : axle rear, 3. The list below is a partial list of typical GM RPO Codes, specifically the codes pertaining to Axle Identification, Differential Type, and Gear Ratio. Typical Salisbury rear end found on 1964-1972 Chevelles. Decoding Rear Axle Codes. 10:1) and H (Holley carburetor). Placed on the sticker inside the driver’s glove box or door panel, RPO Codes can be used to answer questions like: What is the gear ratio of rear end of a Chevrolet Impala? Rear Axle Code example: CB G 112 1 E (CB = Ratio, G = Plant, 112 = 112th day of year, 1 = shift, E = Positraction Source) Assembly Plant Codes Buick - B Buffalo - C Cadillac - D Detriot Gear & Axle - G GM of Canada - K Warren, MI - W Oldsmobile - O Pontiac - P Pontiac/Canada - M Shift: D or 1 = Day shift| N or 2 = Night shift Positraction GM / Chevy - Differential IdentificationShop by your differential. Any ideals would be appreciated. 5" - and the differences in setup for ea This is why GMC or Chevy 14-bolt rear axle identification is a challenge. 08 GU5 - 3. Below you'll find information to help you with Dana 44 and Dana 60 front axle identification covering a variety of makes and models. 23 ratio GU6 Rear axle, 3. 08: 40/13: XE: ZE: 1965 The 1970 rear end differs from the 1971-1981 rear end. axle code says it is 2:73 open. 42 GT4 - 3. It will also tell you where the rearend was built. 33 and up: Pinion Diameter: 1. 2-inch 10- and 12-bolt axles, while the other divisions used various other axle designs, including one 8. 73 ratio GU4-3. Would break one a week. This rear end was available in a 10 bolt version only. The Axle tube stamping is: 2TX G 80472. 25 and 8. In 1970 the rear end was built in both 10 and 12 bolt versions. Please select a rear end that matches your vehicle below. The GM 12-bolt rear axle assembly receives its name due to having 12 bolts on the rear cover of the housing. Need help identifying your differential or not sure which replacement or performance parts you need? Call our staff of differential experts at (800)510-0950. I have a Hollander at home. I WAS MIS INFORMED. 2-inch 10-bolt that saw… Nov 4, 2010 · Rear Axle Identification & Decoding 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. May 31, 2009 · It has a 10 bolt, non posi rear end. there is another code on the passenger axle tube, close to the pinion housing, it is GM 23. Read more about GM RPO Axle Identification Codes . 29 ratio GU1-2. Remove the rear end cover and read it, then use the table above to figure the ratio. Give us more numbers or a few pics. 5″ Rear-end; How To Install Ring and Pinion Gears in a Ford 8. Starting in 1965, the axle code and date are stamped on the front of the axle tube on the passenger’s side. 93-3. I just saved myself A LOT of money. It has a 3969277NF rear housing number and a axle number of GHC 081 2. 5 gear. 14 bolt, 15 inch wide is 10. 14 ratio GH2-2. can I spray brake clean on gear and in case with cover offwon't hurt anything I'm assuming. I’m not sure if it’s the original gear ratio, but I want to change … One L34 Protect-O-Plate shows engine code JC (L34) but rear end code KK (4. From service and repair work to collisions, your truck has seen its fair share of tweaks, upgrades, modifications, overhauls, and general maintenance as well as minor and major repairs in its lifetime. Plant Codes: B ~ Buffalo, New York G ~ Detroit Gear & Axle W ~ Warren, Michigan K ~ McKinnon Industries (not verified) Positraction Codes: D ~ Dana E ~ Eaton W ~ Warner Oct 23, 2020 · Code on passenger side axle reads HA0426 Other codes Nf3896838 Gm56 any help I’ve searched all the charts and no luck 12 bolt rear end identification searched Apr 25, 2010 · Here are some gear ratio RPO codes for looking in other vehicles for specific gear sets G72-2. The casting # is 383939N, GM8 appears on the other side and ZA 1 30 is stamped on the axle tube, it's 60" wide. I just got what appears to be a 1978 Nova 10 Bolt. 23 ratio GT4-3. The rear end came out of a '55 olds 88. Nov 30, 2016 · If it is A 12 bolt BOP they had 8. KD 2. Differential Rear End Bearing Overhaul Kits ; Differential - Rear End Bearing Overhaul Kits (3) Differential - Rear End Bearing Overhaul Kits (4) Custom 12 Bolt Up-Grade GM Car Differentials; Ford 9 3/4 inch Differential Upgrade Replacements for 8. In some cases, the RPO has become so identifiable to a specific vehicle that the code has become a part of the vehicle’s model name: Camaro Z28, Silverado Z71, Corvette Z06, Corvette ZR1. I guess this is date code? would be September 29th of '68' or '78' not sure of year. If I have researched this site correctly it appears the 3969277NF is a 1970-72 10 bolt. I can barely see the stamped ID on the front of the passenger side axle tube. The code is stamped on the tube and is very hard to read unless you wire brush all the road gunk off of it. For example the rear above. 10 posi limited slip axle. Ensure accuracy by checking the tag numbers or stamps on the axle or by utilizing the RPO codes on GM vehicles. com » ; 73-87 Chevy _ GMC Trucks » ; Engine/Drivetrain » ; Rear Drivelines, Drive Axles and Gearing » ; 12 Bolt axle identification and date code versus the Dana axle is necessary for proper selection and ordering of service replacement parts. Example: CB1012W decodes to CB ~ 3. The identification code should be stamped on the bottom or front left or right axle tube either adjacent to the carrier housing or about 8" - 10" inboard from the backing plates. all the books i have tell you that on the opposite side of the casting is a stamping of the axel code and build date, if that was the case they would have to change the mold every day they made a new housing to follow the calendar Re: Differential Codes 10-06-04 07:23 AM - Post# 525023 In response to PAINE I'm guessing that the number is 8725899, which is an open axle 1957 rear axle. 08: 40/13: WE: YE: 1965: GTO: 3. It says C 25 1 and this does not make sence to me. Mar 15, 2008 · G80 Differential, heavy-duty locking rear GT4 Rear axle, 3. 50 inch g91 : special highway rear axle ratio 3. Either the JC (L34) engine code is incorrectly stamped or the carburetor type (H) should be for a Rochester (R). Corvette codes begin with "C" as in CB, CD, etc. EXAMPLE 610079-9 XXXXX (Ident. 5" The codes found on the diff:-GM30-D209-1254333 (could not locate any codes on the axle tubes) Apr 13, 2018 · When it comes to GM muscle car purists – and enthusiasts searching for the ultimate Chevrolet rearend – the 12-bolt rearend is considered the top of the heap in regards to a high-performance axle assembly. 2 C-clip rear end but I'm not sure. Sep 19, 2005 · I have a 71 chevy truck rear end, and I am trying to identify what ratio is in it using the number to the left facing the rear end. Hey Guys I need some help ID'ing this axle I've got a GM 10 Bolt i'm trying to identify. 73 GU4-3. 5in 10 bolt axle A VIN, or Vehicle Identification Number, is a distinctive identifying code assigned to any GM vehicles (Buick, Cadillac, Chevy, etc. Last updated: 2/19/2011 Author: MadMike Maciolek Mar 25, 2016 · I have, what I think is a 7. Jan 17, 2010 · **list of rpo codes** g80 : axle positraction, limited slip g81 : positraction rear axle g82 : axle rear, 4. What do they all mean? Thanks. GM8 0138 3725899 . 56-2. The code on the passenger side tube is: GM parts wiki is showing RAC as a 78 C10 12-bolt open 2. 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 Why? Because it is over on the other side in the CAST date code!!! Now, BOTH the cast date code and the stamped code will tell you more than just the gear ratio and the cast and assembly dates. 23 l l gto hd metallic brakes 1964 3. 5 to 8. 875 gear. 10 ratio and G80= axle positraction, limited slip. Example: CG1025B decodes to CG ~ 3. It is a linear sequence of 17 characters without any intervening spaces or the letters Q (q), I (i), and O (o), which are omitted to prevent confusion with the digits 9, 1, and 0. 76 axle. Dec 1, 2015 · As you can see, the Chevy 12-bolt differential is one stout axle, and it was the rear axle of choice for GM muscle cars and many GM competition cars. Commonly 7 or 8 digit ident number plus manufacture date. 25" IFS front end parts, to the large 11. Aug 1, 2010 · Today I finally took the time to read my RPO codes in the glove box and came up with these two: GT5= 4. This code consists of 7 digits and characters indicating the stock gear ratio, month/day of assembly, and the assembly plant. The codes you mention only indicate a 4. Jan 29, 2024 · How To Install a Limited Slip/Posi Unit in a GM 10 Bolt 8. Between 1973 and 2000, a few 14-bolt axle variations were produced. Some combinations of features have multiple axle codes, e. I will be reaching out to the guy I got this from to confirm a VIN this axle come from. I also don't have the axle here now so I can't take any measurements off it!! May 10, 2009 · I know that this subject has been covered but I have a rear end that doesn't match date codes shown on Novaresource web site. 10 ratio g86 : axle, rear, limited-slip g87 : ring gear, 8. 36- 4. 5 but gears not interchangeable with chevy 10 or 12 bolt I have a 72 Monte with7. 5. Rear Axle Decoding/Identification This file has gotten so large that I've split this file up and moved the chevy rear axle identification information to here. 55 f f gto reg brakes 1964 3. Example: YB 1025 decodes to YB ~ 3. 50 inch g89 : ring gear, 7. Gear Ratio Tag Gear Ratio Code Assembly Date Casting Date Casting Number Gear Ratio The identification code will tell you the gear ratio, if it is a posi, and in some… Continue reading Differential Identification Codes Mar 31, 2007 · I have a 69 camaro. So far I know it's a GM 10 bolt 8. The rear axle identification code is stamped on the axle housing on the bottom, front left, or front right axle tube next to the carrier housing or about 8 to 12 inches from the backing plates. 11:1 ring and pinion. The Salisbury rear end has a removable cover on the rear of the center section where the Hotchkiss does not. 10 ratio GU5 Rear axle, 3. Jan 30, 2017 · A: The rear axle identification code can usually be found on the passenger-side axle tube, midway between the brake backing plate and the carrier housing. the e200 is cast in to the ham. Jul 3, 2023 · Ordering seals, fluid, and maybe a B&M aluminum cover. 73s but I had a feeling the truck came with posi because The various numbers that will allow you to identify your differential are highlighted in the photo below. there are four 12-bolt 3. Summit Racing Equipment; Articles. (June 18) E2382 is weird. Can't be a date code for the casting, too many numbers. Or do the long division. The code will tell you what was originally installed in the housing, but nothing about any changes that might have been made since then. Jun 25, 2008 · rear end identification Chunk type GM like 55 to 64 Can anybody tell me what this rear came out of? It is a GM 10 bolt with these numbers on the housing. EATON HEAVY AXLE SHAFT IDENTIFICATION Feb 19, 2011 · This file has gotten so large that I've split this file up and moved the chevy transmission identification information to here. 73 ratio G80-limited slip differential G87-8. 08-geared 10-bolt is DB for open and DH for positraction. 625 rear end. Axle Codes by year Decoding Rear Axle Codes. Apr 8, 2015 · I am trying to ID a rear end housing that I have. I got very good at rebuilding them. 2-inch 10-bolt and 12-bolt axles, while the other divisions used various other axle designs, including one 8. Aug 26, 2021 · On a small block Chevrolet, the casting number is found at the rear of the block on the driver's side (as is with Chevy's big block engines). I used to carry a spare rear end, with me in the trunk when I had my 409 powered '53 Chevy. Nov 2, 2020 · Q: I have a 1970 El Camino with a 12-bolt differential and 4. Jan 6, 2009 · The ratio code is usually two letters (sometimes 3, sometimes a number & 2 letters), and is found on the right-hand axle tube. Some enthusiasts feel the 9-inch is a comparable replacement – and an acceptable swap into a Chevrolet muscle car – but when Nov 19, 2013 · The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board: Rear Axle Ratio Charts For 1967 - 1972 GM Trucks What do RPO Codes Means? A Regular Production Option is a General Motors standard coding for vehicle configuration options Each RPO code is a combination of three alphanumeric characters (like Z71) that refers to a specific option or modification to the vehicle as built during production and can be used to identify specific vehicle options or modifications such as paint colors, engine types Decoding Rear Axle Codes. Please refer to the Differential Codes section for internal numbers! Need help with your differential identification? Call Sierra Gear & Axle at (800)792-2714. I also noticed a casting number on the front side of the pumkin as GM 73. We’re here to help Monday thru pontiac rear end decoder year ratio open posi model notes: 1964 3. 14 bolt, 12 inch wide is 9. I did see this stamped on the driver's side axle tube perch. 1ta : axle, full floating 1z2 : vehicle preparation, anti corrosion hot melt 200 : trim combination, cloth, very dk sapphire (0) (91) 201 : trim combination, vinyl, very dk sapphire (w) 202 : trim combination, leather, very dk sapphire (2) 203 : trim combination, leather, very dk sapphire (3) Jun 18, 2013 · I would just take ~5 minutes~ to remove the 10 bolts and pull the cover. 8 Inch Rearend; How To Rebuild a GM 10 Bolt Chevy 8. It is set up for coil springs. 41 ratio GM8-2. 2 GEARS WILL FIT THESE HOUSINGS: Axle Shaft Diameter The identifying code is either located on a metal tag attached to a cover bolt or is stamped on the right front side axle tube about 3 inches outboard of the carrier, approximately 30 to 45 degrees above the horizontal. PONTIAC Axle Gear Codes Wallace Racing Code Location. The D56 is the CASTING date for Apr 5, 1956. The particular engine RPO code is listed in parentheses as found on build sheets. vppsgmoptionsactiveonly_1111200 09u 48758 p ccu m primary color exterior, mary kay pearl tricoat (02) 10926 e 4 e a 09u 49389 p ccu m primary color exterior, polar white (02) holden 10327 e 8 e a Mar 13, 2018 · Learn how to visually identify different sizes and styles of GM 10-bolt rearends, from 7. I assumed from reading through the forum that most Silverados, even the 2500HD, came stock with 3. 41) but it would also allow you to see what carnage may be inside. 6" IFS - Front - Late Model Midsize Truck GM 7. 5", 10. Just as all people have a past, so, too, does your Chevy Silverado 1500. In 1964, the axle code was stamped on the front, right side of the differential carrier housing. The engine ID code stamping is located on a flat pad in front of the passenger side cylinder head (big blocks can be in the same location or above the timing chain cover, with inline-sixes stamped on the passenger side of the block behind the distributor). 5" rear end parts for 1-ton trucks. while I have cover off gonna see what rear end it is along with cleaning cover and giving it a fresh coat of paint. 5″ Rear End; How To Select Proper Rear-End / Differential Gear Ratio; Mopar Body Style Codes; Popular Automatic Transmission Dimensions 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. 5" and 11. 36 e e gto reg brakes 1964 3. 73 GT5 - 4. 12 bolt, 11 inch wide is 8. 73 ratio GT5 Rear axle, 4. 8 inch; 4x4 Differential Assemblies; Jeep Differential Rear End Repair Parts. Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes. From reviewing the site, I assume it is a 8. 2. 5 rear end. Finally found a '63 Olds in a junk yard and installed the Pontiac-Olds rear in place of the Chevy rear end and then I moved on to breaking T-10 four speeds. 07 non-posi axles codes listed for 1968. It is 60" wheel to wheel. It begins with ACC but I am struggling to make out much else. any helpful tips on this job is much appreciated A Salisbury rear end is very easy to distinguish from the Hotchkiss design. There Rear Axle Codes The following is a complete listing of all axle codes used on 1967-69 Camaros. 25 gears. The casting number for a 55 rearend is questionable, if non-existant. Learn how to quickly identify the three different variations of the GM 14 Bolt differential - the 9. I am pretty sure it is a 10 bolt 8. Tech. Those numbers are the casting numbers which indicate an April '57 build date. ) at the time they were constructed. Sep 1, 2012 · if this is a rear with the drain plug it is from 57 as 55,56 did not have also if i am correct the 57 axels are larger in diameter. rear differential cover today flush and fill up. Chevrolet used the division’s own 8. May not exactly answer your question but you should be able to look through the pics i saw to help identify your axle. 2-inch 10-bolt that saw use under certain Buicks,… Aug 12, 2014 · I found 10 bolt, 11 inch wide is 8. General Motors has a wide range of front and rear ends! We carry everything from the 7. 08 d d gto reg brakes 1964 3. Axle Spline: 28 bolt in axle 60 degree spline: Yoke style U bolt & nut Universal joint retention (reference picture) Pinion Spline: 27: Carrier Ratio Breaks: 2. Aug 8, 2017 · The 3707306 casting number is a ONE YEAR ONLY for 1956, on the driver side of the case. #) (Date) Corporation axle identifica-- Apr 5, 2019 · The photos below show the axle, it looks like some mounts have been removed from the top of the casting. These tags have a wealth of information about your specific vehicle’s equipment and specifications. 75 gear. Select the year to proceed with decoding the differential identification codes. Jeep Hubs; Center (Accurate identification using the GM RPO code assumes that the rear end has not been previously modified) The prefix is usually F, G or H when referring to Axle Identification. Chevy 10- and 12-bolt axle assemblies have been standard equipment on GM passenger cars, muscle cars, and trucks for decades. FIELD IDENTIFICATION. 08 ratio GU5-3. Oct 10, 2014 · The code was vertical on this housing and the code is I 298. And yes the 7 figure gig is the actual casting number. 5/7. I thought it was a two digit # like HC. Sep 13, 2012 · It came in my 1968 Firebird, and straight away I knew it was the wrong rear end. Typical Hotchkiss rear end found on full size 1955-1964 Chevrolet, Ford and MoPar. The problem is it came without drums so i'm trying to get a disc kit for it or replacement drums but i'm not sure which ones I need. 31 ratio What can be found on the axle housing is the stamped axle code with assembly date, housing casting number and date housing was cast. 438 <<<<< AFTERMARKET 8. 56 ratio g84 : axle rear, 4. Now I am trying to sell it and want to know its intended application. 23 k k gto reg brakes 1964 3. This rear axle was available in GM's high-performance intermediate cars, full-size vehicles and light-duty trucks. 73, chevrolet built on the 81st day, 2nd shift. The rugged, reliable, and efficient Chevy 12-bolt has established itself as the preeminent rear differential for GM muscle cars since its debut in 1965. The ID code for your 3. Found your application and need parts? Locate a Sierra Gear & Axle Distributor near you, or call (800) 792-2714 The identification code should be stamped on the bottom or front left or right axle tube either adjacent to the carrier housing or about 8" - 10" inboard from the backing plates. 36:1 Positraction, 1025 ~ Month [Oct] and Day [25], B ~ Buffalo (G=Chevrolet Gear & Axle, W=Warren, K=McKinnon Industries). Apr 14, 2020 · 73-87chevytrucks. Any help would be appreciated. 36:1, 1025 ~ Month [Oct] and Day [12], W ~ Warren (B=Buffalo, G=Chevrolet Gear & Axle, K=McKinnon Industries). FIRST 3 LETTERS ARE THE MINIMUM REQUIREMENT FOR IDENTO-PLATE Gonna pull the. When repairing or upgrading differential parts, the first and most important step is to identify your existing axle / differential. I am ok with this setup for the coupe, but my question was in the yoke! It is the flat type. The axel code is "TFA G119", the casting is "1254333", and the date on the differential is "D31" or April 3, 1971. The GM RPO Codes, or General Motors is a great way to pick out your Chevrolet or GMC’s gear ratio of rear end. There is a partial vin of 1254383. 36 m m gto hd metallic brakes 1964 3. Our differential experts are available from 8am to 5pm PST Monday thru Friday. We make it easy to verify your exact rear end by providing specs and year, make, and model applications for The rear axle identification code consists of at least a two letter prefix indicating the gear ratio, a letter for the GM Division, and three digits indicating the day of the year from January 1. 6 inches, by their covers, bolts, and axles. 5" and 3-1/4" for a 7. Learn how to identify Dana axles using our easy-to-follow guides and Dana axle code charts for Ford, Chevy, GMC, Dodge, Ram, Jeep and IHC. 5 10-bolt axles The identification code should be stamped on the bottom or front left or right axle tube either adjacent to the carrier housing or about 8" - 10" inboard from the backing plates. 5in 10 bolt axle G89-7. After some searching I found GM used these in some 70 - 72s like cutlass, GTO and Monte Carlos. 42 ratio JD9 Brakes, 17" disc/disc JF4 Pedals, power-adjustable JL4 StabiliTrak, stability control system K05 Engine block heater Jun 2, 2015 · This article applies to the Chevrolet Silverado 1500 (1999-present). May 22, 2008 · just in case you was wondering Gu2 - 2. We’re here to help Monday thru Friday from 8AM to 5PM CDT . I was told the rear end gears are 3. 55 n n gto hd metallic brakes Aug 9, 2009 · 10 bolt ID If you don't have the codes on hand to identify if a 10 bolt rear end is an 8. Dana Dana 30 - Standard, Reverse Rotation, CS & TJ Dana 30 - JK GM 7. Now it has a weird rear cover that looks like a 10 bolt 8. It was too wide, and was replaced recently. The cast date code ends in a SINGLE number for the year (8 for 1958). I have gasket maker, brake clean, gear oil 80w-90. A Salisbury rear end is very easy to distinguish from the Hotchkiss design. Read more about GM RPO Axle Identification Codes. 5". The various numbers that will allow you to identify your differential are highlighted in the photo below. 73:1 ~ 12-bolt large ring gear, October 30, Buffalo, NY Dec 24, 2020 · Before GM consolidated its rear-axle production into what became known as “corporate” axles around 1971, each division placed its own versions underneath the passenger cars it produced. 78 / 2. 1974 A and G Body Rear Axle ID : This chart applies to most GM 8. 23 GU6 -3. 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 Oct 13, 2010 · That's correct squirrel, code and build date. Big-block Chevelles, Camaros, and other GM high-performance vehicles were fitted with the 12-bolt limited-slip axle to maximize torque transfer and traction. Sep 24, 2018 · Before GM consolidated all of its rear axle production into what became known as “corporate” axles around 1971, each division placed its own versions underneath the passenger cars it produced. 5, GM 10-bolt rear end under my 54 chevy wagon that I am trying to identify what make and model car it originally came in. The axle code of GHC 081 2 is a 2. af vh pn vo fc mm wu lp vy xq