Yukon Gear & Axle YGK2005 GM 8.6in 4.88 Ratio Rear Ring & Pinion Kit with Dura Grip Posi and Axle Bearings

The Yukon Gear & Axle YGK2005 is a complete Pro Kit package for the GM 8.6" 10-bolt rear differential, combining a high-performance 4.88 ratio ring and pinion gear set with a Yukon Master Install Kit, a 30-spline Dura Grip clutch-style limited slip positraction unit, and axle bearings and seals — everything needed for a full re-gear in a single part number.

Kit Contents & Specifications:

• Ring gear diameter: 8.6" (8.5" / 8.6" GM applications)
• Gear ratio: 4.88
• Designed for 10-bolt rear cover and 10-bolt ring gear applications
• 30-spline Yukon Dura Grip clutch-style limited slip differential (positraction)
• All Dura Grip positraction units are fully rebuildable
• Differential carrier bearings: 2.891" outside diameter
• Includes Yukon Master Install Kit with high-quality Timken bearings
• Includes axle bearings and seals
• Includes all necessary small parts for a complete differential rebuild

Yukon Pro Kit Advantage:

• Premium ring and pinion gears engineered using state-of-the-art design and advanced heat-treating techniques
• Gears are precision-tested to meet exacting specifications for surface finish and structural integrity
• Designed to run quietly and withstand high horsepower and high-torque conditions
• Backed by the best warranty in the business
• Convenient all-in-one packaging saves time and eliminates sourcing individual components

The Yukon Dura Grip limited slip positraction delivers power to both wheels for improved traction on and off road, while the premium Timken bearings and included hardware ensure a proper, lasting installation. The YGK2005 Pro Kit is the complete solution for re-gearing a GM 8.6" 10-bolt rear differential to a performance 4.88 ratio.