Rear ends for 1937-72 Chevys: Complete rears and parts, 55-64 center sections, positractions and non-posis and "P" case rears; 10 and 12 bolt rear. Shipping a Camaro rear end isn't hard. Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled "Service Parts Identification" inside the drivers door panel or glove box. Thank You Rich. 08 RATIO GU5 -- AXLE REAR, 3. 67-72 RPO Codes (Regular production options) This list is exclusive to 67-72 chevy and GMC trucks but if you find that an option is missing drop me a line and I will get it added. For over 25 years, Dynatrac™ has been the industry leader in high-performance off-road axle and drivetrain assemblies. Campbell You're going to need the vehicle identification number (VIN) number to obtain the axle ratio for your Chevrolet Truck, but even after you decipher the VIN and its sequential meaning, you're going to have to do more leg work. In this tech tip we'll show you how to identify what type of GM differential you're using by decoding the RPO code (or option code) found on a factory placed sticker in the interior of your vehicle. 5" diameter ring gear and pinion with a 3rd bearing at its nose that prevents gear deflection under severe loads. What is the width of the whole assembly if anyone knows?. This axle is commonly used with big engines and/or overly large tires. Since listing them all within this article is impossible, we'll be focusing only on visual identification. Rear-End Widths of Classic American Cars. 23 RATIO GU6 -- AXLE REAR, 3. If there is a code that is mising please E-mail me and i'll add it ASAP. It is currently under a 1979 model camaro and it has apparently been modified and I would like to know what it originally was put in. The differential’s only job is to equally split engine torque and redirect it to the rear wheels. Not all vehicles are set up the same, even though they may be the same make and model. Untitled document FAB Quest Automotive Calculators and Charts: Axle Identification Chart by Cover or 3rd Member Bolt Configuration. 2" 10 Bolt. Chevy Bel Air With GM 8. In a locked differential, the spider gears are locked to the side gears at all times, as if they are welded together. The number of axles in the tables in this section are derived from the axle code shown on the vehicle’s Certificate of Registration. Be careful not to damage the gasket sealing surface when removing the unit. Several Codes on 2006 dodge grand caravan Today I got several codes that came up on my 2006 dodge grand caravan. Ordnance Spec. Rear-End Widths of Classic American Cars. The auto repair labor rates vary widely across the country, and even within the same city. The Chevrolet sourced engine was the 305 (Engine Code CEL or CEM") cubic inch V8, which was a small bore derivative of the venerable 350 V8. We Recommend Corvette Black Book from Amazon for Stats, RPO Codes and easy to flip through facts!. The code appears as a number or letter/number combination in the 'Axle' column of the label. As this second case study of GM’s relatively simple. This rear end was available in a 10 bolt version only. Last model year the ZR2 option was offered on a regular-cab pickup. RPO Code Definitions The following listing is most of the GM Production Options. 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. 5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. "P" CASE - rear end, posi GM casting #3789812 / used November 1960 & later - CALL FOR DATES AVAILABLE (click to view larger image) LARGE \"P\" CASTING NUMBER 3743833 THRU NOVEMBER 1960. Shop Detroit Axle. It also saved collapsing the new one a seemingly interminable amount. You guys have been so helpful thanks to all "As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my sweet ride. Shop online with LMCTruck. If you have access to axle tag codes for '72-up, please e-mail me. GU6 -- AXLE REAR, 3. Anyone here know what ratio that makes it? And if you do know, can you tell me how you know, so that I may get the same. Most auto repairs shops charge between $75 and $150 per hour. 73s headers true duals,holley 770 eddy intake and carb spacer~ resto-mod in progress 1975 chevy k10 DOWN FOR RESTORATION! 540-700r4-203/205 and lots more to come in just a few monthes!! 2000 chevy silverado z-71,5. That don't make sense! It has a 250 L6 and a SM465 4 speed (not orginal). Rear Axle Assembly Codes The rear axle ratio may be determined by finding the two- or three-letter serial number prefix in the following table. Extended Description. Online shopping from a great selection at Automotive Store. Sometimes the casting numbers can also be used to show whether an axle housing is a limited slip differential (LSD) or not. 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. Found on all modern cars and trucks, maintaining this integral vehicle system is even more important for your off-road vehicles. RPO Code Definitions The following listing is most of the GM Production Options. Ae omonen Dea omonen ea P. Our Service Center provides mechanic services of skilled and trained mechanics to assist in keeping your vehicle in top running order. GU6 -- AXLE REAR, 3. 10Rear Suspension: SolidPinion Nut Size: 1-. C0379 Diagnostic Trouble Code Discussion for September 2007 Front Axle Circuit Malfunction Note: This is a professional automotive technician's resource. Please select a rear end that matches your vehicle below. 5 Axle Assembly Written by Ron Ceridono on October 20, 2013. 1965 to 1969 GM 10 and 12 bolt Axle codes Photo shows the code stamped on my 67 Grande Parisienne. david mac Guest My 85 C10 rear axle code is GQ1. Just put some blocks of wood under the spring perches and run some lag bolts through the u bolt holes. AAM is a premier, global leader in design, engineering, validation and manufacturing of driveline, metal forming, powertrain, and casting technologies for automotive, commercial and industrial markets. Mopar Rear Axle Identified by casting number & number of cover bolts. I am just getting started and will add to it as more become available to me. Here is my confusion. 5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. Models include: Pontiac Firebird: Base, Formula, Trans Am, Ram Air & WS6. The 1967 Firebird axle housings have the loops (where control arm bushings would mount) on top of the center chunk as if they were getting A-body control arms, but they also have the spring perches for leaf springs, and the brackets for the factory. Borg Warner 7. 0 5 speed Tracker does indeed have the 4. "P" CASE - rear end, posi GM casting #3789812 / used November 1960 & later - CALL FOR DATES AVAILABLE (click to view larger image) LARGE \"P\" CASTING NUMBER 3743833 THRU NOVEMBER 1960. Parts ship same day!. For type: limited slip or not. While this article focuses specifically on the GM 8. Casting # XXXXX and NF3896839 on center housing. History and Identification of Chevy 10 and 12 Bolt Chevy Differentials Chevy 10- and 12-bolt axle assemblies have been standard equipment on GM passenger cars, muscle cars, and trucks for decades. the easy way to find the ratio is to open the case spin the. Official Chevrolet site: see Chevy cars, trucks, crossovers & SUVs - see photos/videos, find vehicles, compare competitors, build your own Chevy & more. 5" diameter ring gear and pinion with a 3rd bearing at its nose that prevents gear deflection under severe loads. Rear axle identification First generation 1960-1966 Chevy C10 Trucks Rear axle identification - C10Trucks. GM Duramax - 2001-2004 LB7 VIN Code 1 - Differential & Axle Parts - 9. Gerards stimulating gm casting numbers and humanlike gm casting numbers rear end with gm casting numbers block of 1968 von jagow and. 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. A Chevy 3/4 ton pick-up may have a 14 bolt semi-float rear axle or a 14 bolt full-floating axle. As long as the codes on the Tahoe matched the Denali your good to go. GQ1 -- AXLE REAR, STD RATIO. A rear end of a car is the combination of the rear axle and differential gears located at the rear of the vehicle encased in either a cast-iron or aluminum housing. C4 RPO Codes Regular Production Options for C4 Corvette. 5″ 10-bolt rear differential, the parts and processes described herein cover most differential housings. RPO codes are for all pontiac firebird and chevrolet camaro models. This Information is for Research and the Promotion of the Preservation of Older Chevys. It has numbers on the case:GM15,3856525 with a N above it and the Vin# is C154 - 6Z137529. 42 2 pinion open 7. 42 RATIO G80 -- AXLE REAR, LIMITED SLIP (POSITRACTION) If it is an open rear end (no traction aids) then it will just list the gear ratio code. Rocky Mountain Suspension offers leveling kits that typically only raise the front of your vehicle a modest amount, body lift kits that raise the body of the vehicle from the frame and suspension lift kits that are designed to raise the suspension components for greater ground clearance and space for larger tires and wheels. GM 12 Bolt Passenger Car GM12P Rear Differential Parts - Ring Gear Diameter: 8. This package will include information pertaining to the option code and be mailed USPS for $50 USD. The codes were P0700-01/06, P0562-02/06, P0750-03/06, P0700 P-04/06, P0562 P-05/06 and P0750-06/06. 1962-1967 Chevy II - Rear Axle Assemblies. 41 GU2=ratio 2. GU5 -- AXLE REAR, 3. We make it easy to verify your. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. axle codes to rear end ratio? « on: April 22, 2010, 02:24:36 PM » anyone have a link to axle codes. Usually look for the 'G' codes g60 or g80 usually show a limited slip differential and a code like gu6 is the axle ratio- if I remember right a gu6 is a 3. Our Service Center provides mechanic services of skilled and trained mechanics to assist in keeping your vehicle in top running order. 5", common under 3/4 and 1 ton trucks from Chevrolet and GMC. 5 is setup for use with the disc type system. Axle Components Installers Guide DESIGNED FOR GM AND RAM PRODUCTS. In 1971, GM instituted a standardized "corporate" rear axle. Chevs of the 40's | 1937-1954 Chevrolet Classic Restoration and Street Rod Parts Parts for 1937 to 1954 Chevy Cars or Trucks (Click on your car/truck below for vehicle information). Look in the glove box and look at the GM PRO Code sticker. Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled "Service Parts Identification" inside the drivers door panel or glove box. ILL # Part # Base Description. 8 rear out of a 96-2001 ford explorer are the most affordable option for 350+ hp engines. 07: CE: X: 3. Rear Axle Codes The following is a complete listing of all axle codes used on 1967-69 Camaros. Look for the codes GU1=axle ratio 2. For servicing the rear axle, the third letter must be known, which is the manufacturers identity. The 14 bolt differential is a popular axle swap option for Jeep Wrangler owners, and is referred to as the "corporate" 14 bolt because of the odd nature of GM's corporate structure in the 1970s. The 12 bolt is actually the 3. Whether you’re going custom or stock, you've come to the right place!. 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. These tags have a wealth of information about your specific vehicle's equipment and specifications. Axle Identification is stamped on differential carrier along with date of manufacture. "Rear end", "rears", etc. 1947 to 1972 rpo codes. The GM Corporate 14-bolt axle is one of the most favored rear-ends you can find used for under $500. Our experts will help you find the correct ring and pinion set for your particular application. FRONT DIFFERENTIAL ACTUATORS. 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. Ae omonen Dea omonen ea P. Pontiac Rear End Gear Codes; Year: Model: Rear Gear: Teeth Count: Standard Code: Locking Code: 1965: GTO: 3. 1969 models built after approximately August of 1969 use 1970 coded differentials. 75 inch four pinion rear end, produced by GM Holden's Limited of Australia (Firebird WS6 cars went to this unit in 1986). Jump to Latest I have to find a S10 rear end with 4. Post 1994, the 14-bolt was built by American Axle & Manufacturing. GM RPO Codes Below is a complete list of the General Motors Regular Production Option(RPO) Codes. 1984 Camaro Vehicle Identification Number (VIN) codes: Vehicle Indentification Number Example: 1G1AP87G1EN100001 Commonly refer to as the "Vin Number", this series of numbers and letters is stamped on a plate. Find 1956 CHEVROLET Differential & Rear-End Components and get Free Shipping on Orders Over $99 at Summit Racing!. Im hoping I have at least one 373. Sierra Gear & Axle is a premium line of light-duty differential parts. Easy to use parts catalog. 5" is the most common rear axle and is still in use today in GM rear wheel drive cars and trucks. 36 No10 boltDana DC 3. Rear axle identification First generation 1960–1966 Chevy C10 Trucks Rear axle identification - C10Trucks. This axle is commonly used with big engines and/or overly large tires. Check out Part 4 of our Doomsday Diesel build as we rebuild an 01 to 10 GM ear axle to last forever. The Chevrolet sourced engine was the 305 (Engine Code CEL or CEM") cubic inch V8, which was a small bore derivative of the venerable 350 V8. It will list the housing with a code number. Both of these are semi-floating axles. I was told this came out of a 1969 C10 with 6 lug. The 60-62 had an Eaton 1/2 ton rear, and the 3/4 ton rear end was the Eaton full floating rear end. 36 Yes10 boltDana DJ 3. Two things to know, the final drive ratio and type. Which rear end do I have ?? The book says they are 2 different rear ends and there is a big difference in the towing weight they can pull. "O" Axle Only 12 Bolt Cover - 10 Bolt Gear Plate clutches. Cadillac CT6 on GM's Do-Not-Discard List After All Cadillac’s CT6 flagship sedan may not be dead after all. Drivetrain Parts. 73 Yes12 boltDana DN 4. 625" diameter ring gear with 28 spline axle shafts, however,. AMC JEEP FRONT AXLES. 08 Yes10 boltDana DH 3. It’s easy to fall into the habit of re-placing common problematic compo-nents without verifying that they ac-tually are defective. General Motors rear end differentials are referred to by the diameter of the ring gear, i. The ratios are correct, but use pan gasket ID to determine whether its a 9-bolt or 10-bolt axle. 55 f f gto reg brakes 1964 3. When servicing the rear axle, the third letter of the code must be known in order to determine the identity of the rear axle manufacturer. 625" axle is the most common housing used in GM G-body car vehicles and features a 7. 625 10 bolt, but I can not for the life of me find out what it came out of. Need help identifying your differential or not sure which replacement or performance parts you need?. 25" and and afterwards were 8. GM differentials come in a wide range of sizes. Below you will find the most complete list of Chevy trouble codes available. 08 rear end center section is an original used two-pinion type with cast arma-steel housing. GT4 -- AXLE REAR, 3. 56 RATIO GMC : PLANT CODE PONTIAC, MI, USA GN9 : AXLE REAR, 4. Parts ship same day!. 55 Rear End Differential OEM USED-This 1955-1956-1957-1958-1959-1960-1961-1962-1963-1964 Chevrolet 3. 42 and the other is 3. Dana 60, Dana 44, Corporate 14 Bolt. 5" ring gear, 1. On each GM differential, there is a code on the ring gear which shows the number of teeth, and therefore the ratio. Thus making differential ratio changes in a 440-T4/4T60 difficult, since the entire transmission needs to be disassembled in order to change it. GM CORPORATE 14-BOLT 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 few thousandths of an inch shorter in ring gear diameter. I've seen it copied here, or in a link to another site. GM differentials come in a wide range of sizes. The 14 bolt differential is a popular axle swap option for Jeep Wrangler owners, and is referred to as the "corporate" 14 bolt because of the odd nature of GM's corporate structure in the 1970s. 1955, 56, 57 chevy bel air, 210, 150 differential parts for all years and models Eckler's Classic Chevys has a wide selection of Chevy Tri Five differential parts, and rear differentials. A GMC Jimmy ZR2 surfaces in Canada. 55 f f gto reg brakes 1964 3. Extended Description. * These ratios were offered with the optional 12 bolt rear end. 25 IFS Front Axle GPG Performance Parts. 23 k k gto reg brakes 1964 3. I need to ID the axle code: GAK K095 3 I need to know the gear ratio. Rear ends with measurement designations are named after the diameter of the ring gear, i. General Motors has a wide range of front and rear ends! We carry everything from the 7. 58 times for every one turn of. Nitro Gear and Axle strives to provide the highest quality differential components. I know that it is a second series 7. rearend And Lug Pattern Configuring gm Bolt Axle Zip Code: Internal. 5″ rear axle in the bagged C10 using Yukon Gear & Axle components…. 1965 to 1969 GM 10 and 12 bolt Axle codes Photo shows the code stamped on my 67 Grande Parisienne. A7293: 60-61 "P" CASE - rear end, posi GM casting #3743833 / CALL FOR DATES AVAILABLE - October 1960 was the last usage for the 3743833 case. This code is used to record the layout and number of axles and wheels on vehicles. Some enthusiasts feel the 9-inch is a comparable replacement - and an acceptable swap into a Chevrolet muscle car - but when. GT4 -- AXLE REAR, 3. Many times, if you locate a 10-bolt rearend, it's usually a 7. The world's leading supplier of parts for the restoration of Chevrolet Impalas and other models of Full-Size Chevrolet cars. "Rear end", "rears", etc. I can not find the decoding of the letters WAO 021 1, W80 C263, WDB C261. The 12 bolt is actually the 3. So i have think i have 373 gears but i am not sure tho, What would be some of the newer 2000's and up are Gmc/Chevy rear axles that would fit right in with out any cutting or welding? And also dos any one know the rpo codes in the glove box for the gear ratio? Thank You!!!. 08 37/12 COE COF 1970 Firebird 3. Engine Suffix Codes For C or K Trucks Only. My Julian day of 191 was casted in my rear center section, I would go to a Julian Day Calendar and look up the 191 day which decodes to July 9, 1968. The code is stamped on the tube and is very hard to read unless you wire brush all the road gunk off of it. The 10-bolt differential fits all passenger cars. Rear Numerical Codes: Code: Positraction: Ratio: CC : 3. The AAM 1150 uses an 11½-inch ring gear, but retains the same axleshaft diameter as the 14-bolt. We specialize in the Highest Quality Restoration Parts available for your Chevrolet & GMC Pickup Trucks, Suburbans, Blazers and Jimmys. Assembly Plants. 1 Yes12 boltDana DO 4. 42 and the other is 3. 11 rear gear axle ratio, adding extra wear to the engine and to your mental state. 1L Gas w/ Full floating Axle 14-11. 08 RATIO GU5 -- AXLE REAR, 3. 35] would provide decent off-the-line performance, even with a low horsepower engine. 41 GU2=ratio 2. Price Match Guarantee! Welcome Guest. The following is a general list of rear ends and their dimensions to help narrow the search for a possible candidate to replace the torque tube rear end or just get a better set of gears for highway driving. The military Model 25 has a thick, cast cover, while the 27 and civilian-model 25s have a thinner cover, will accept taller gears, and backed V-6s. I am just getting started and will add to it as more become available to me. The 1964 serial numbers are found on the bottom of the carrier. Built from the 1970s through today (the 8. GM Axle code GU2 March 2nd, 2006, 07:30 AM. Last model year the ZR2 option was offered on a regular-cab pickup. RE: how to read the vehicle codes on chevy trucks to determine gear ratio of rear end. Changing the differential in a 4T60-E is simple in caparison, since all you need to do is remove the differential housing cover and a snap-ring. Not many 3rd members will have those tags but the stamped code will be there if you can dig through the usual grease and crud. Read how Chevy High Performance Magazine Evaluates The Advantages And Disadvantages Of 9-Inch Vs. "O" Axle Only 12 Bolt Cover - 10 Bolt Gear Plate clutches. Pontiac Rear End Gear Codes; Year: Model: Rear Gear: Teeth Count: Standard Code: Locking Code: 1965: GTO: 3. I can not find the decoding of the letters WAO 021 1, W80 C263, WDB C261. 07 Trending price is based on prices over last 90 days. GQ1 -- AXLE REAR, STD RATIO. The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. I've been looking online since i bought the truck and have been trying to determine if i have a limited slip differential or a possi, also better known as a locker. RANDYS has the widest aftermarket drivetrain selection. Please Report any Broken Links or Pages that do not load properly. 9" axle came in '66-'70 B-bodies, the 56. I found that is from a 1971 C10. 0 liter Mustang LX Coupe (notchback) was the "trimmed of all fat" and low-optioned, 3,100 lb ultra rare 1LE code Camaro. "P" CASE - rear end, posi GM casting #3789812 / used November 1960 & later - CALL FOR DATES AVAILABLE (click to view larger image) LARGE \"P\" CASTING NUMBER 3743833 THRU NOVEMBER 1960. 00" bore) and a stroke of 3. 5 Axle Assembly Watch 1969's NHRA U. Seven-character code that begins with the 2-letter axle factory application code, is followed by the assembly date as a 2-digit month and a 2-digit day of month, and ends in a 1-letter factory code. if it's non posi, jack up one wheel, turn it exactly twice and count driveshaft revs. Last model year the ZR2 option was offered on a regular-cab pickup. Welcome to GMWholeSaleDirect. I was thinking about finding a rear end out of a car with disk brakes, so my question is what kind of cars are basically a direct bolt in besides b-bodys? I don't care if it's the same gear ratio or not because I can always retune the computer. 1955-1964 Chevy 3. 08: 40/13: WE: YE: 1965: GTO: 3. 73 Eaton Code Ratio Posi Notes Plant DA 3. If the rear was originally anti-spin, the first letter will be an "X;" the second letter will be the axle ratio; and the following numbers represent the day of the year the axle was produced. ARP Rear End Cover Bolts GM 10-bolt 437-3001. Assembly Plants. Classic Industries offers a wide selection of 1963 Chevrolet Chevy II Nova parts, including 1963 Chevrolet Chevy II Nova interior parts and soft trim, 1963 Chevrolet Chevy II Nova exterior sheet metal, 1963 Chevrolet Chevy II Nova moldings, 1963 Chevrolet Chevy II Nova emblems, 1963 Chevrolet Chevy II Nova weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. Once thorough cleaning is accomplished the differential goes back to our rebuild center to begin assembly. Chevy, Ford, and Mopar rear axle widths. kingpin 2-1/8 tall kingpin boss Max drop on these axles is 3" overstock $350 plus shipping to drop your axle May have cores in stock. 25in from outside of hub to hub. Your differential is the set of gears that allows your vehicle’s driven wheels to revolve at different speeds by splitting your engine torque in two ways. The 1967 Firebird axle housings have the loops (where control arm bushings would mount) on top of the center chunk as if they were getting A-body control arms, but they also have the spring perches for leaf springs, and the brackets for the factory. 5 ring gear, 10 ring gear bolts, 30 spline pinion, c-clip axles could be 28 or 30 spline, referred to as the GM 10 bolt. A rear end of a car is the combination of the rear axle and differential gears located at the rear of the vehicle encased in either a cast-iron or aluminum housing. Chevy Check Engine Light Codes. 1969 Chevelle Differential Codes. 1984 Camaro Vehicle Identification Number (VIN) codes: Vehicle Indentification Number Example: 1G1AP87G1EN100001 Commonly refer to as the "Vin Number", this series of numbers and letters is stamped on a plate. The 1962-63 serial numbers are located on the front, right side of the differential carrier. Can you help me with a year, or any information so I can order parts. If you take a few moments to study the gear chart for your transmission and rear end ratio combination you will see why this product is so popular. 5″ 10-bolt rear differential, the parts and processes described herein cover most differential housings. Note: All 1965-67 Corvette rear axles were manufactured at Warren and are suffixed “W”. 8 1/8 for the Chevrolet unit. C0379 Description The front axle control circuit consists of an electric motor actuator, which engages and disengages the front axle. b uilding and racing the '57-'64 pontiac / oldsmobile rear end. 5" ring gear B02B 3. Go to Chevrolet, GMC, Cadillac or Oldsmobile websites for more information. It has RV 0306 W 2 stamped on top of Passenger side axle housing. GT4 -- AXLE REAR, 3. (Only letters, numbers, dashes and underscores are permitted for user names). RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. I know that it is a second series 7. If you went the other way and changed the rear axle ratio, the engine would scream—4000 rpm at 75 mph with a 4. I'm having a real problem finding out what gears my rear end has. com have hundreds of warehouses that we ship out of all across the US and Canada, meaning chances are we have what you need. Some enthusiasts feel the 9-inch is a comparable replacement – and an acceptable swap into a Chevrolet muscle car – but when. So, what could make it better? How about giving the driver complete control of when and what gets locked?. Seven-character code that begins with the 2-letter axle factory application code, is followed by the assembly date as a 2-digit month and a 2-digit day of month, and ends in a 1-letter factory code. The reliability of the axle tube and bearing are really the only problem spots you are likely to encounter with the 8. There is a list of the 55-64 gear ratio codes in the CCI Tech Book. The combined gear ratios [4. 5 is setup for use with the disc type system. We have specialized in information for the First Generation Firebird (1967, 1968, and 1969). 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. Proform 141-697 Chevy Bowtie Emblem Rear End Cover GM 12 Bolt Passenger Car. 58 2 pinion open 7. To find out what options your car was ordered with you may look up all the codes listed on your Service Parts Identification tag. Shop Detroit Axle. 5 10 bolt was the standard rear in the Buick Grand National , turbo T-types, '84 Hurst Olds, and the 442's of the 80'. 75 (8 3/4) rear end LOADS FROM THE FRONT and IS THE ONLY REAR END THAT DOESN’T HAVE A REAR COVER. The Jimmy ZR2 was unavailable in the USA. Yukon Gear & Axle. 67-72 RPO Codes (Regular production options) This list is exclusive to 67-72 chevy and GMC trucks but if you find that an option is missing drop me a line and I will get it added. It has leaf spring mounts. 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. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. For the first time, the ZR2 is offered in 2WD. measures 63. 510), Your Choice of Only One of the Following Castings While Supply Lasts: Cast Date Casting # Stamped Code NONE 3707306 AC 2 25 NONE 3707306 AA 3 10 NONE 3707306 AA 3 11 NONE 3707306 BB 5. Sierra Gear & Axle is a premium line of light-duty differential parts. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. The codes are: B for Buick, C for Buffalo, G for Chevrolet-Gear and Axle, K or M for GM of Canada, O for Oldsmobile, P for Pontiac and W for Warren. The AAM 1150 uses an 11½-inch ring gear, but retains the same axleshaft diameter as the 14-bolt. The ID code for your 3. Every-thing you want to know about your car is probably right here in the Original Specifications Section. com, 1955 Chevy 1956 chevy 1957 Chevy Forum , Talk about your 55 chevy 56 chevy 57 chevy - Belair , 210, 150 sedans , Nomads and Trucks, Research, Free Tech Advice. Then, search the site for the threads that discuss axle ratios (a lot of them). Its a 1995 g30 van 10. Rear end codes, or rear differential codes, vary among manufacturers. Campbell You're going to need the vehicle identification number (VIN) number to obtain the axle ratio for your Chevrolet Truck, but even after you decipher the VIN and its sequential meaning, you're going to have to do more leg work. 1988 Chevy Camaro RPO Codes From 1984 to 1990 Chevrolet attached a "service parts identification" label (SPID) or RPO Codes list to the lid or to the inside of the center console. Diesel Power Products carries the Factory OEM Exhaust Pressure Differential Sensor for 11-13 6. Chevrolet Silverado 2500 Pickup : Rear Axle Assembly (OEM Number BU2) To find your Chevrolet Silverado 2500 Pickup Rear Axle Assembly from a RECYCLER NEAR YOU , just enter the YEAR of your vehicle and your ZIP code in the above form and press the "FIND" button. A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. 25" Front Differential. That don't make sense! It has a 250 L6 and a SM465 4 speed (not orginal). GM axles are stamped on the axle tube (and sometimes the center section) with codes for the year and ratio. I suspect all the CAMI built vehicles have the label in the same place. 08: 40/13: XE: ZE: 1965. 10 RATIO GU4 -- AXLE REAR, 3. The axle code, if on the differential, is comprised of one or two letters for 1964-’70 models, followed by a three-digit build date. This rear end was available in a 10 bolt version only. Save up to $18,987 on one of 32,599 used 2008 Chevrolet Silverado 1500s near you. GU4 -- AXLE REAR, 3. 3l-4l60e loaded 6" on 35s~driven daily. Rear Axle Assembly Codes The rear axle ratio may be determined by finding the two- or three-letter serial number prefix in the following table. rear end chuck, dont want to doubt you but i believe it is either a dana 60 or dana 70 rear. This bulletin is being issued to inform dealers about the compatibility and usage of the new Fuel Efficient SAE 75W-90 Synthetic Axle Lubricant, GM P/N 12378261 (In Canada use P/N 10953455), with current axles, and with the non-synthetic axle lubricant, GM P/N 1052271 (In Canada use P/N 10950849), for the rear axles on the above light-duty trucks. RANDYS carries GM differentials from the small 6. rear end codes.