Eaton Posi Performance Differential - GM 8.5" 10 Bolt, 1971-89 GM Passenger Car - 28 Spline, 1.20" Axle Diameter - 2.73 Ratio and Up 20-PRY-NG-6XS Over Valve Cover

Over Valve Cover

DMI spacers and axle nuts provide the best quality and performance available

Aluminum air cleaner base has 14" overall diameter

Ignition Wiring Harness

Driving Pants

Eaton Posi Performance Differential - GM 8.5" 10 Bolt, 1971-89 GM Passenger Car - 28 Spline, 1.20" Axle Diameter - 2.73 Ratio and Up 20-PRY-NG-6XS Over Valve CoverAutomatic, limited slip uits with carbon friction clutches and forged gears consistengly and reliably deliver equal power to both wheels. Units are rebuildable. Eaton is the world's largest independent producer of torque controlling differentials for vehicle manufacturers, the automotive aftermarket and commercial and military vehicle manufacturers. We are leveraging our differentials expertise, which includes vehicle and traction dynamics, to