How much does it cost to rebuild a rear differential?

Depending on the make and model of your car, as well as its condition, expect to spend between $1,500 to $4,000. The other factor is if you buy a new rear-diff or a used/rebuilt one.

Is a GM 10-bolt rear end good?

That’s usually proven when used in high-performance, high-horsepower applications. But for all intents and purposes, the 10-bolt rearend is a great unit for a street/strip car, and can be stout enough to handle even the occasional abuse delivered by use at the racetrack.

How much does it cost to rebuild a rear end on a truck?

Complete Replacement. A typical rear differential repair costs anywhere between $200 and $400. These typical repairs would include your bearing, seals, and fluid changes. Of course, when a gear change is required, that’s when things get pricey. $1,500 is just the minimum you can expect to pay for new gears.

Are all GM 10-bolt rear ends the same?

That is the great caveat; there are four sizes of 10-bolt GM rear ends: 7.5/7.625-, 8.2-, 8.5-, and 8.6-inch. These sizes refer to the diameter of the ring gear, and the one you use makes a big difference in the performance potential.

How hard is it to rebuild a rear differential?

A complete rear differential replacement includes replacing the housing, gears, bearings, and seals. The average time it takes a certified mechanic to perform a differential rebuild at a shop is usually three to five hours. A rebuild on a commercial vehicle by someone without prior experience could take much longer.

What are the signs of a bad rear differential?

Symptoms Of A Bad Rear Differential

Vibrations. A bad differential can cause vibrations that increase in intensity as you speed up and reduce as you slow down.
Grinding Gears. Grinding gears is another significant sign that your differential is failing and that the gears are wearing themselves out.
Whining Noises.

What causes a rear end to go out?

The most common cause of a bad differential is lack of oil, which could result in grinding at high speed, cause the carrier to break, or in most cases, block the rear wheels.

How do I know if my rear end is Positraction?

If you can turn the wheel on your side while the other wheel is held still, the rear differential is not a Positraction unit. If you cannot turn the wheel on your side while the other person is holding their wheel in place, then the axle is a Positraction.

What size is the pinion nut on GM 10 Bolt?

8.5″
PYN10 – 10-Bolt 8.5″; Pinion Nut (30 Spline Pinion)

Is it worth rebuilding a differential?

As long as vehicle owners keep up with maintenance, most vehicles won’t need a differential rebuild during their time on the roads — but, if you are in an accident or do experience a problem with your differential, repairing it is important to your safety and the health of your vehicle on the roads of Madison and …

What size is a 10 bolt rear end on a Chevy?

Although the 7.5-inch 10-bolt closely resembles the 8.5-inch housing, you can positively identify the Chevy 7.5-inch rearend by measuring it. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches.

When did the GM 12 bolt rearend come out?

It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. It was used in different models by all GM divisions – with the exception of Cadillac. Since it was so widely used, there is a better possibility of finding one of them at a salvage yard than locating a 12-bolt.

How big is the pinion on a 10 bolt rearend?

The pinion diameter is 1.438 inches, and has 25 splines. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body.

How can I tell what year my 10 bolt rearend is?

Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. Many times, if you locate a 10-bolt rearend, it’s usually a 7.5-inch unit. These have been around since 1975, and were installed under cars, small trucks, and vans up to the 2005 model year.