Ratech Rear Pinion Bearing - Ford 9" 91940079 Removing the stock bypass allows

Removing the stock bypass allows the engine to receive filtered oil all the time

Vehicle Applications: Ford Pickup L6/V8 1987-1997

4160 primary side only

500 lift over our previous best 205cc runner

Ratech Rear Pinion Bearing - Ford 9" 91940079 Removing the stock bypass allowsPilot Bearing Ford 9" Axle 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. Ratech uses only hardened shim stock not sheet metal gauges. Shim stock comes in . 002 increments whereas