1998 & Older with Drum Brakes
Small Carrier Bearings
Front and Rear Applications
28 / 30 / 31 Spline Axle Shafts
GM 8.6" 10 Bolt
1999 & Newer with Disc Brakes
Large Carrier Bearings
Rear Solid and IRS Applications
30 / 32 (IRS) Spline Axle Shafts
The GM 8.5" 10 Bolt axle, also known as the GM 8.6" axle or GM 10-Bolt, is available in many front and rear axle applications including both solid axle and IFS / IRS configurations. While the GM 8.5" axle features an 8.5" diameter ring gear and the GM 8.6" axle uses a slightly larger 8.6" diameter ring gear, almost everything within the axles is completely interchangeable.
*Older "5-Cut" face milled gears have different set up specifications than the newer "2-Cut" face hobbed gears.
Note: This axle has a Carrier Break and gear changes may require a different carrier or thick gears.
Don't see the particular axle or drivetrain parts you need? We carry more products and brands than we can make available on this website so give us a call or send us an email and chances are we can get what you need at a great price.