Ratech Complete Ring & Pinion Installation Kit - GM 12-Bolt Passenger H76001FM If your engine can't efficiently

If your engine can't efficiently expel spent combustion gasses

The high performance all-round cam bearings offer more than double the fatigue strength of conventional bearings

In-Line UEGO

000+ mile durability in a cost effective

Part of the Eibach PRO-PLUS

Ratech Complete Ring & Pinion Installation Kit - GM 12-Bolt Passenger H76001FM If your engine can't efficientlyComplete Installation Kit 12 Bolt GM Axle (Auto )Contains Pinion Shims, Carrier Shims, Crush Sleeve, Pinion Seal, Pinion Nut, Ring Gear Bolt Set, Cover Gasket, Pinion Bearings, Carrier Bearings, and Marking Compound. (Image typical Kit may vary from image but will contain appropriate parts) 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."