Eaton Truetrac Differential Fits 9″ Ford With 31 Spline Axles

Application – Ford 9″ with 31 spline axles Description Eaton 31 Spline Detroit Truetrac A helical gear differential that offers smooth power transfer Features Torque Biased Mechanical Unit • Helical gear design • Smooth, automatic operation • Clutchless & maintenance free • Operates in forward & reverse Gear Lube DO NOT USE SYNTHETIC GEAR OIL Will adversely affect unit operation Use Only Petroleum Based 80W-90 or 85W-140 Gear Oil 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