12T GM 3.73 & Up Dura Grip Limited Slip, 30spl, Composite Clutches. 12T GM 3.73 & Up Yukon Dura Grip Limited Slip, 30 Spline, Positraction; Composite Clutches. 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.
- Fits GM 12T differential
- 30 spline axles
- For 3.73-and-up gear ratio
- Yukon Dura Grips feature 4320 chromoly spider gears for ultimate durability
- All units are backed by extensive product testing and state-of-the-art software design
