how do i identify my gm rear end

GM differential identification is easy the diff can be accurately identified by the bottom line of the tag number or axle tube stamp this also applies to Dodge rear end identification and most other makes of truck. When Chevrolet built the first Camaros in 1967 they were already in production of both 10- and 12-bolt rear-end housings.

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The 10-bolt was used in all the low performance applications.

. All Chevrolet rear ends can be identified by. 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. I have a 10 bolt bare housing allegedly out of a first gen.

Not all vehicles are set up the same even though they may be the same make and model. Is there a way to determine if its an 8125 82 or an 85 ring gear. GM 14 bolt axles were available in semi-float and full-float versions and there are two types of hubs found on 14 bolt axles.

I have gm axle cx0824 389914 Nwaww. Unless you are really into axles it can be a little confusing to know which axle you have. Also two different types of drums were used.

The BOM will identify the model number the gear ratio the type of differential and all component parts. The car versions were in production from 1971 to 1987. Identify the most common GM rear-end types.

Between 1973 and 2000 a few 14-bolt axle variations were produced. Products include ring and pinion sets installation kits and axle shafts for GM Ford Chrysler Jeep and Toyota vehicles. Give us a call at 800-216-1632 to get started.

Can you identify my axle with brand and year. Need your help please. On some tags the first 2 digits dont appear on the tag but they must be used to identify the axle.

Do my flange and perch measurements correspond to a first gen rear end. This article applies to the Chevrolet Silverado 1500 1999-present. When looking at a 12-bolt rearend it is important to know that 12-bolt axle assemblies use different components for cars and trucks.

Both of these are semi-floating axles. Turn the wheel TWO revolutions and count the number of driveshaft turns. General Motors has been using this axle assembly in cars for 16 years and in 12-ton trucks for 30 years.

Traditional BOMs are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. 75 inch 85 inch 105 inch. Among the Chevy 10-bolt family of axles these provide the best performance and durability.

Sierra Gear Axle parts are designed and engineered to the highest quality specifications for use in street off-road and performance environments. Answer ID 3975 Published 01182011 0818 AM Updated 12182018 0129 PM. Then find those codes in the table below.

Ring and pinion gear is 265 I. GM built countless thousands of both types of 10-bolts from 1970 to 1994. This is why GMC or Chevy 14-bolt rear axle identification is a challenge.

There are several ways to identify the axle under your vehicle. Like Superman in street clothes however it can be hard to identify this beefy unit among its weaker cousins the 10-bolt 82-inch with open differential. For decades Chevy and GMC trucks vans and SUVs came equipped with a 14-bolt axle.

For instance the truck 12-bolt uses a smaller inner pinion-bearing 1438 inches versus 1675 inches. It has bolt in axles. General Motors rear end differentials are referred to by the diameter of the ring gear ie.

A Chevy 12 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. The flange to flange dimension is 545 and the perches are 42 58. Rear Axle Identification.

Rear Axle 307 G72 Rear Axle 214 G75 Rear Axle 362 G82 Rear Axle 456 G84 Rear Axle 410 G90 Rear Axle 315 G91 Rear Axle HWY 308 G94. 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. Sierra Gear Axle is a premium line of light-duty differential parts.

According to Year One Tech the bolt number count is as follows. These identify numbers and letters are they for axle tube. How do I know what rear gear ratio I have.

Having a visual reference is probably the easiest way. G2 Differential Cover Do you have an Axle Tag Number or Axle Tube Stamp. How do I find out what gear ratio my Chevy truck has.

When it comes to getting power to the pavement GMs 10-bolt 85-inch rear end with Positraction is a hero. Our experts will help you find the correct ring and pinion set for your particular application. This means parts are not interchangeable which can come back to bite you later if you buy the wrong assembly.

The number of driveshaft rotations will help you determine your rear axle ratioFor example if it turned 3 and a half times its a 3501 ratioIf it turned 4 and a quarter times its a 4251 ratio. To find the axle gear ratio of any GM vehicle locate the RPO sticker typically located in the glove box and write down any codes starting with F G or H. These rear axle assemblies can handle up to 400 hp.

At Lugnut4x4 we are really into axles. This assembly used an 82-inch ring gear diameter and 28-spline axles for Camaros Chevelles Impalas and even the early Chevy IIs. To help you find the right part we first need to properly identify the axle you have or need.

10 bolts on GM 10-bolt 825 and Dana 60 rear ends 12 bolts on the GM 12-bolt rear end and nine bolts on the GM 725. Just as all people have a past so too does your Chevy Silverado 1500. Please open the attached documents to see pictures of the cover gaskets and differential covers for many popular rear ends.

I would like to put in my 1965 chevelle if it will fit. Look at the shape of the inspection cover and the gasket. 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.

We have a large selection of gear sets in stock and can recommend the correct.

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