Ratech Solid Pinion Bearing Spacer w/ Shims - GM 12 Bolt (Passenger) I Beam Rod 75 " Bore Size Models

75 " Bore Size Models 4150/4160

1964-1970 Mercury Cyclone

Universal Bolt Pattern

2011-2019 Ram 2500

Ratech Solid Pinion Bearing Spacer w/ Shims - GM 12 Bolt (Passenger) I Beam Rod 75 " Bore Size ModelsSolid 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.