Detroit TrueTrac Differential - 28 Spline - 2.73 Ratio and Up - 8.5 in - GM 10-Bolt 29020R "bulkhead" style with jam nut

"bulkhead" style with jam nut for easy mounting

3-piece design is all billet aluminum and is 30% lighter than other wing valves on the market

a great rear pad when mixed with 01 in the front

Hook and Loop Adjuster Strap

Dual Square Bore

Detroit TrueTrac Differential - 28 Spline - 2.73 Ratio and Up - 8.5 in - GM 10-Bolt 29020R "bulkhead" style with jam nutDetroit Truetrac 912A556 28 Spline 1. 20 in. Axle Shaft Diameter 2. 73 and Up Ring Gear Pinion Ratio First Helical Gear Differential Eliminates Need For Wearable Parts Maintenance Free Traction Proven Design And Effective Performance Durable Smooth Quiet Operation The legendary Detroit Locker began the revolution in performance differentials and still leads the industry today as an Eaton brand. The Detroit Locker is the most durable and dependable