GM 10 Bolt 8.5 & 8.6 Axles and Axle Kits

10-bolt 8.5-inch differential in some of these cars or trucks:

1971-'76 Chevrolet full-size cars

1994-'96 Impala

1971-'81 Buick full-size cars

1973-'77 Buick Gran Sport

1972-'77 Pontiac GTO and Le Mans

1970-'81 Chevy Camaro and Z28

1970-'81 Pontiac Firebird

1971-'77 Olds Cutlass and F-85 and Pontiac Grand Prix

1971-'79 Chevy II, Nova, Buick Skylark and Olds Omega

1973-'77 Chevelle, Malibu and El Camino

1971-'77 Pontiac Ventura and Phoenix

1971-'81 Pontiac Bonneville

1973-'77 Monte Carlo

1973-'77 Buick Apollo, Regal and Century

1980-'94 Chevy ½-ton and ¾-ton pickups

1977-'94 GMC Jimmy and Chevy Blazer

The 8.5-inch is often referred to as the "GM corporate 10-bolt" because of its multiple uses, and the 8.5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. The reliability of the axle tube and bearing are really the only problem spots you are likely to encounter with the 8.5-inch rear end. The axle tube is thinner (.3125-inch thick) than that in the 12-bolt, and the axle bearing is probably the weakest link of this rearend assembly.

Ten Factory have a 10 Year warranty on all thier shafts.

Nitro Gear has a Lifetime warranty on all thier shafts.

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