Extra Info:

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence and performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction.
Fits Dana Spicer 80
4.10 and down ratio only
35 spline
Clutch style positraction
Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
1 year warranty against Manufacturer defects
Technical Notes: Yukon recommends the use of high grade GL-5 gear oil and Yukon LSD (Limited Slip Differential) additive for long life and smooth operation. Part number OILADD. The use of synthetic oil is allowed but may result in aggressive or noisy operation.