Ratech Solid Pinion Bearing Spacer w/ Shims - GM 12 Bolt (Passenger) 91929929 and then induction hardened to

and then induction hardened to Rc48

1971-1973 Ford Mustang CID 351 GAS

Hassle-Free Installation:

MSD has a distributor for it

5 in Vacuum

Ratech Solid Pinion Bearing Spacer w/ Shims - GM 12 Bolt (Passenger) 91929929 and then induction hardened toSolid Pinion Bearing Spacer with Shim Pack 12 Bolt GM Axle (Auto)Replaces the stock crush sleeve, eliminates bearing failure, reusable. 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.