Ratech Solid Pinion Bearing Spacer w/ Shims - GM 12 Bolt (Passenger) I Beam Rod 40% lighter than previous offering

40% lighter than previous offering

75 " Bore Size Models 4150/4160

45 in Rectangular Port

565 in Knurl

1991-2002 Jeep Wrangler

Ratech Solid Pinion Bearing Spacer w/ Shims - GM 12 Bolt (Passenger) I Beam Rod 40% lighter than previous offeringSolid 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.