Detroit TrueTrac Differential - 28 Spline - 2.73 Ratio and Up - 8.5 in - GM 10-Bolt 29020R Your hypereutectic performance piston will

Your hypereutectic performance piston will expand less than typical cast or forged pistons

"bulkhead" style with jam nut for easy mounting

Bug Release

Dual Square Bore

Detroit Locker Differential 225SL29A 35 Spline - 1

Detroit TrueTrac Differential - 28 Spline - 2.73 Ratio and Up - 8.5 in - GM 10-Bolt 29020R Your hypereutectic performance piston willDetroit 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