How do you identify a Chevy 8.5 rear end?

Identifying a Chevy 8.5 Rear End
To identify a Chevy 8.5 rear end, you can use a combination of visual inspection and measurement. Here are some steps you can follow:
1. Inspect the Cover: The Chevy 8.5 rear end typically has a round cover with 10 bolts. It may also have cast-in protrusions at the five and seven o’clock positions, as well as an angled protrusion at the top of the cover.
2. Measure the Cover: The oval-shaped cover of the Chevy 7.5-inch rear end measures approximately 8 5/16 inches by 10 9/16 inches. On the other hand, the 8.2-inch rear end has an irregular-shaped cover that measures around 10 5/8 inches. These measurements can help differentiate between the different rear end models.
3. Count the Inspection Cover Bolts: Count the number of bolts on the inspection cover of the rear end housing. The Chevy 8.5 rear end typically has 10 bolts securing the cover.
4. Measure the Pinion Shaft Diameter: The pinion shaft diameter of the Chevy 8.5 rear end measures approximately 1.438 inches.
5. Check for Axle Retention Method: The axles in the Chevy 8.5 rear end are typically retained by C-clips on the inner end of the axles.
By combining these visual inspection and measurement techniques, you should be able to identify a Chevy 8.5 rear end. Remember to consult a professional or refer to a reliable source for accurate identification if you are unsure.
I hope this helps! Let me know if you have any other questions.
Note: The information provided above is based on the search results from You.com and does not include a list of sources/bibliography.

Contents

What cars did the 8.5 rear end come in?
How do I identify my Chevy rear differential?
How do I know if I have a 7.5 or 8.5 rear end?
How do I identify my GM rear differential?
What is the difference between a Chevy 8.5 and 8.6 rear end?
How do you tell if you have a 8.2 or 8.5 rear end?
How do you identify a GM 8.5 rear end?
How do I know what rear end I have?
How do I tell what size my Chevy rear end is?
What year s10 has a 8.5 rear end?

What cars did the 8.5 rear end come in?

You can find a 10-bolt 8.5-inch differential in any of these cars or trucks:

1970-’81 Chevrolet Camaro.
1970-’81 Pontiac Firebird.
1971-’76 Chevrolet Impala and Caprice.
1971-’81 Buick Centurion, Electra, Electra 225, and LeSabre.
1971-77 Pontiac Grand Prix.
1971-’77 Oldsmobile Cutlass.

How do I identify my Chevy rear differential?

If the ID tag or stamp is missing or unreadable, differentials can be 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 do I know if I have a 7.5 or 8.5 rear end?

If a person did not know the year the donor car was, what would they do to identify the rear size? The 7.5 is slightly smaller and looks like it was stepped on. The 8.5 is nearly round. You really make that look easy.

How do I identify my GM rear differential?

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 or the driver’s side door jamb (B-Pillar).

What is the difference between a Chevy 8.5 and 8.6 rear end?

While the GM 8.5″ axle features an 8.5″ diameter ring gear and the GM 8.6″ axle uses a slightly larger 8.625″ diameter ring gear, almost everything within the axles is completely interchangeable. Note: GM 8.6″ differentials can be installed in a GM 8.5″ axle with the proper conversion bearings.

How do you tell if you have a 8.2 or 8.5 rear end?

Will look over here on. The. Eight point two three ran out of a Monte Carlo. And you can see. There is no ears on the bottom.

How do you identify a GM 8.5 rear end?

The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. You will also notice the large, flat, cast-in protrusions at the five and seven o’clock positions. These protrusions are larger than those on the 7.5 rearend.

How do I know what rear end I have?

Visual Differential Identification
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 do I tell what size my Chevy rear end is?

You can typically find your RPO code on driver side door panel or glove box. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. 7.5 inch, 8.5 inch, 10.5 inch.