The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects. This unit has larger bearing journals for added strength & uses heavy-duty carrier bearings & races. Product Features:Fits GM 8.5 and 8.6 with 30 spline axles2.73 ratio and up only4-spring, clutch style positractionInternal gears are manufactured using forged 4320 steel and cut to provide stronger teethFully rebuildableAssembled in the USA
