US Gear Clutch Style Differential Fits 9″ Ford With 28 Spline Axles

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 Related Components S-Series case……………………… N2205 Pro Iron case……………………… N1905 HD Pro Alum case kit…………. P3200 Side bearings & races….. D1586 / D1588 Alloy axle package……….. P3102 / P3104