Yukon Gear & Axle YGK2012 8.5" GM 3.73 Ratio Ring and Pinion Master Install Kit

The Yukon Gear & Axle YGK2012 is a complete professional-grade differential upgrade package designed for GM 8.5" rear axles with 10-bolt rear covers. This comprehensive kit combines a precision-manufactured 3.73 ratio ring and pinion gear set with all the components needed for a complete installation, including axle bearings and seals.

Complete Kit Includes:

• High-performance 3.73 ratio ring and pinion gear set with 8.5" ring gear diameter
• Premium Timken carrier bearings (LM501349) with 1.625" inside diameter and 2.891" outside diameter
• Master install kit with pinion bearings, races, and shims
• Axle bearings and seals for complete rear end service
• All necessary small parts and hardware for professional installation

Key Specifications:

• Fits GM 8.5" rear axles with 1.625" carrier bearing journal
• Compatible with 10-bolt rear cover and 10-bolt ring gear applications
• 3.73:1 gear ratio for improved performance and efficiency

Yukon Pro Kits are engineered to save time and money by consolidating all necessary components into a single part number. Each kit features premium Yukon ring and pinion sets precision-machined for quiet operation and maximum strength, backed by Yukon's industry-leading warranty. This complete package eliminates the guesswork and multiple part orders, allowing technicians to complete differential rebuilds efficiently with confidence in component quality and compatibility.