Ratech Complete Differential Installation Kit Bearings/Crush Sleeve/Gaskets/Hardware/Seals/Shims/Marking Compound - GM 218 mm BR40051 Extensive testing is performed on

Extensive testing is performed on all products by our in-house engineers

Also fits spark plug wires

3/8" NPT thread-in probe

ButlerBuilt Aluminum Seat Back Bracket - 3/16"

CAMSHAFT RECOMMENDATIONS: Performer RPM #7102

Ratech Complete Differential Installation Kit Bearings/Crush Sleeve/Gaskets/Hardware/Seals/Shims/Marking Compound - GM 218 mm BR40051 Extensive testing is performed onProduct Description: Differential Installation Kit Complete Bearings Crush Sleeve Hardware Seals Shims GM 218 mm 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 Stock available. Ratech uses only