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Speedmaster
GM 8.5" 8.6" 10 Bolt 30 Spline Clutch Plate Type LSD Limited Slip Differential
MPN: PCE204.1065 UPC: 840136515357
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.