Detroit TrueTrac Differential - 27 Spline Engine Lift Plate They feature a wear resistant

They feature a wear resistant tool steel axle and precision sorted needle bearings

15 in Diameter

Side B is AN-12To us

1975-1987 Pontiac Grand Prix

DESIGNED WITH OEM HARNESS CONNECTORS FOR SIMPLE INSTALLATION

Detroit TrueTrac Differential - 27 Spline Engine Lift Plate They feature a wear resistantDetroit Truetrac 912A585 27 Spline 1. 16 in. Axle Shaft Diameter 3. 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