Ratech Complete Ring & Pinion Installation Kit - GM 12-Bolt Passenger H76001FM and that you know what

and that you know what to do with it

Controls fuel and spark

Vacuum Secondary

includes three 4" tabs

This Header-back dual exhaust system uses 2

Ratech Complete Ring & Pinion Installation Kit - GM 12-Bolt Passenger H76001FM and that you know whatComplete 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."