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 HSLRG11PAFIA Five-Rib Aluminum Insulator

Five-Rib Aluminum Insulator

3-3/4 in Deep

Adapter to add large throttle mounting hole to throttle lever

This allows a cleaner flow of water/methanol to be passed into the engine

Silicone / Fiberglass

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 HSLRG11PAFIA Five-Rib Aluminum InsulatorAutomatic, 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