Ratech Complete Differential Installation Kit Bearings/Crush Sleeve/Gaskets/Hardware/Seals/Shims/Marking Compound GM 8.5/8.6" 10 Bolt 1530A14 Laptop-Free Tuning changes to help

Laptop-Free Tuning changes to help optimize mileage

Comes with: Metering Jets - Primary

1978-1981 Pontiac Parisienne

Downsized Design Helps Clearance Issues

A direct plug in wiring harness is included for ease of installation

Ratech Complete Differential Installation Kit Bearings/Crush Sleeve/Gaskets/Hardware/Seals/Shims/Marking Compound GM 8.5/8.6" 10 Bolt 1530A14 Laptop-Free Tuning changes to helpProduct Description: Differential Installation Kit Complete Bearings Crush Sleeve Gaskets Hardware Seals Shims Marking Compound GM 8. 5 8. 6 in 10 Bolt Ratech wants all racers to know about The Myth that "All Shim Packs in the market are the same. They're just washer shaped steel that come in different thickness." WRONG! Ratech manufacture all of their shims in house on their own machinery. Ratech uses the absolute finest American made Hardened Shim