Application – Ford 9″ with 28 spline axles

Description
US Gear 28 Spline Posi Unit
A perfect replacement for worn-out OEM clutch differentials

Note
This is intended as a factory replacement
For high output vehicles, consider larger axles & differential

Gear Lube
DO NOT USE SYNTHETIC GEAR OIL
Will adversely affect unit operation and void warranty

Use Petroleum Based 80W-90 or 85W-140 Gear Oil
Requires (1) 4 ounce bottle of limited-slip additive