Eaton Posi Differential 28 Spline 1.20in Axle Shaft Diameter 2.73 & Up Ratio Front/Rear 8.5in

The Eaton Posi limited-slip differential is the perfect way to control traction in street rods, light duty pickups and all types of tarmac running race cars. Featuring pyrolytic carbon clutches, rebuildable design, net-forged gears for added strength and seamless, automatic operation.This Part Fits: Year Make Model Submodel 1973-1975 Buick Apollo Base 1975 Buick Apollo SR 1971-1973 Buick Centurion Base 1973-1977,1980-1981 Buick Century Base 1975-1979,1982-1989 Buick Century Custom 1980-1981,1984 Buick Century Estate 1985-1989 Buick Century Estate Wagon 1976 Buick Century Indianapolis 500 Pace Car 1978-1989 Buick Century Limited 1973-1975 Buick Century Luxus 1984 Buick Century Olympia Limited 1975-1979 Buick Century Special 1978-1981 Buick Century Sport 1983-1986 Buick Century T-Type 1971-1974,1976-1979 Buick Electra 225 1971-1974 Buick Electra 225 Custom 1974 Buick Electra 225 Limited 1973 Buick Electra Base 1975 Buick Electra Custom 1980-1989 B