GM 8.5 8.6 10 Bolt 30 Spline Clutch Plate Type LSD Limited Slip Differential
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.