How do I know what rear end my S10 is?

How do I know what rear end my S10 is?

Look under the rear of the vehicle. The rear end is centrally located between the rear wheels. On the back of the unit, count the number of bolts holding the inspection plate cover to the rear end housing.

What kind of differential does a Chevy S10 have?

Chevrolet S10 models generally use the GM 7.5-inch rear differential, however, certain models were equipped with the GM 8.5-inch differential. Both differentials were available as limited slip, positraction differentials.

What rear end is in a 1991 S10?

the stock rear end is a 28 spline 7.5″ 82-93 have a 26 spline.

How do I identify my GM differentials?

Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox. Whenever possible, reference the tag numbers when ordering parts for your Differential.

How do I know if I have a rear differential?

Without an ID tag, differentials are identified by the number of cover bolts, the distinctive shape of the cover, the number of ring gear bolts, and ring gear diameter. They can also be identified by whether the center section is an integral or dropout design.

How much horsepower can a 10 bolt rear end handle?

Here’s what I’ve been lead to believe: 7.5” 10 bolt GM rear: It will take up to about 450 HP IF the axle tubes are welded to the housing and either a differential cover with preload bolts is installed or straps are installed over the carrier bearing caps along with longer bolts.

Is limited slip differential the same as Positraction?

A limited-slip differential (LSD) is a type of differential that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts. Limited-slip differentials are often known by the generic trademark Positraction, a brand name owned by General Motors.

How do I identify my Chevy rear differential?

The rear cover’s shape and the number of bolts are identifying features for GM rear differentials. The round 10-bolt cover with a bulge for the ring gear identifies this axle assembly as an 8.5-inch 10-bolt. The two lugs on the lower case at the 5 and 7 o’clock positions are also identifying features.

How do I know if I have an 8.5 rear end?

Another way to tell the difference between an 8.2 and an 8.5 rearend is to pull the cover and look at the bolt holding the spider gear crosspin. If it takes a 1/2-inch wrench to remove it, it’s an 8.2. If it takes a 5/16-inch wrench to remove it, it’s an 8.5.

How do I know if I have a limited slip differential?

The easiest way to tell if you have an open differential is to jack up the car and spin one of the rear tires. If the other wheel spins in the opposite direction, you have an open differential. If it spins in the same direction, you have a limited slip differential, or LSD.

What was the rear differential on the Chevy S-10?

by Floyd Drake III. The Chevrolet S-10 pickup truck, one of the first compact models manufactured by a domestic auto maker, was equipped with three different rear-differentials, or rear ends. According to Chevy High Performance, the 7.5-inch was standard until 1993, when the previously optional 7.625-inch became standard.

Where is the rear end on a S-10?

Although these rear end units are similar in appearance, the 8.5-inch has visual differences, however, the 7.5 and 7.625 differences are internal and driveshaft splines must be counted. Look under the rear of the vehicle. The rear end is centrally located between the rear wheels.

How big is a S10 axle in inches?

I’m trying to find accurate measurements of S10 axles, not “I think it’s about xx inches wide”. I need to know 2WD, 4WD and ZR2 widths from WMS to WMS. A guy has an 8.5 (or 8.625) with G80 from his ZR2 for sale for $150. I figured it’s a decent deal if I could use it on my 2WD.

Where are the bolts on a GM S-10?

On the back of the unit, count the number of bolts holding the inspection plate cover to the rear end housing. All three units have 10 bolts, as they are all variations of the GM Corporate 10-Bolt.