Yukon Gear Dura Grip Positraction For GM 8.5in & 8.6in w/ 30 Spline Axles

Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches. For unmatched positraction performance, the Dura Grip is the ultimate choice. When your vehicle demands performance, durability and strength, choose Yukon Dura Grip.Installation InstructionsInstallation InstructionsThis Part Fits: Year Make Model Submodel 1980-1989 Buick Electra Estate Wagon 1980-1989 Buick Electra Limited 1980-1989 Buick Electra Park Avenue 1989 Buick Electra Park Avenue Ultra 1985-1989 Buick Electra T-Type 2004-2007 Buick Rainier CXL 2004-2005 Buick Rainier CXL Plus 1980-1987 Buick Regal Base 1982-1983 Buick Regal Estate Wagon 1987 Buick Regal GNX 1984-1987 Buick R