The Yukon Dura Grip limited-slip for GM 8.5" and 8.6" housings with 30-spline axles provides dependable positraction for applications with 2.73-and-up gear ratios. It’s designed to be rebuilt for long-term use. Highlights include forged 4320 chromoly spider gears, composite clutches, precision gear finishing and a four-pinion layout to match the specified 8.5/8.6" GM differentials.
Yukon Gear Dura Grip Positraction For GM 8.5in & 8.6in w/ 30 Spline Axles