Detroit TrueTrac Front Differential - 28 Spline - 2.73 Ratio and Up - 8.5 in - GM 10-Bolt 91629039 1978-1979 Porsche 930

1978-1979 Porsche 930

7L LT-1 engine using 3

Excellent Throttle Response

1981-1982 Ford Granada

The amazing HydraMat® is Holley's patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks as well as racing fuel cells

Detroit TrueTrac Front Differential - 28 Spline - 2.73 Ratio and Up - 8.5 in - GM 10-Bolt 91629039 1978-1979 Porsche 930Detroit Truetrac 912A557 28 Spline 1. 20 in. Axle Shaft Diameter 2. 73 5. 13 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