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24 maj 2011 · I have a 10 bolt bare housing allegedly out of a first gen. The flange to flange dimension is 54.5" and the perches are 42 5/8". Is there a way to determine if it's an 8.125" (8.2?) or an 8.5" ring gear? Do my flange and perch measurements correspond to a first gen rear end?
17 lip 2024 · Identifying a GM 10-bolt rear end housing requires measurements, locating casting numbers, and knowing what to look for. The 8.5s and 7.5s look remarkably similar, so you’ll need a measuring tape to confirm.
13 mar 2018 · 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.
25 mar 2016 · I have a 10-bolt stamped “GZ”, which identifies it as a 2.73:1 open, 8.5-inch rear-end that came out of a 1972 Camaro. So with a little investigating (and a Sherlock Holmes hat), you should be able to determine the exact origins of your housing.
Camaro Rear Axle Information. The 1970 rear end differs from the 1971-1981 rear end. In 1970 the rear end was built in both 10 and 12 bolt versions. In 1971, GM instituted a standardized "corporate" rear axle. This rear end was available in a 10 bolt version only.
Nice original GM rear end axle set up for your Camaro. This is a 10 bolt version that is designed for mono or single leaf rear springs. Just removed from a car and is ready to go. All the internals look good and are original with no major issues.
The GM 10-bolt rear end is quite possibly the most misunderstood and undervalued rear differential ever created. Even though it has been used in every major GM rear-wheel-drive platform, the 10-bolt has a bad reputation for being a low-performance unit.
