Yukon Gear & Axle YGK2025 8.6in GM 4.88 Ratio Rear Ring & Pinion Master Install Kit with Axle Bearings & Seals

The Yukon Gear & Axle YGK2025 is a complete rear differential re-gear package for the GM 8.6" axle, featuring a 4.88 ratio ring and pinion gear set, a full Master Install Kit, and axle bearings and seals — everything needed to fully rebuild the rear differential in a single part number. Designed for 10-bolt rear cover and 10-bolt ring gear applications, this Pro Kit is the most comprehensive re-gear solution available for GM 8.6" equipped trucks and SUVs.

What's Included:

• Yukon 8.6" GM 4.88 ratio rear ring and pinion gear set
• Yukon Master Install Kit with high-quality Timken bearings
• Carrier bearing and race: LM603049 / LM603012 (1.781" ID x 3.062" OD)
• Axle bearings and seals
• All necessary small parts: shims, crush sleeve, bolts, and more

Key Features:

• Advanced manufacturing: Yukon engineers use state-of-the-art design and advanced heat-treating techniques to ensure precise structure and surface finish specifications
• Timken bearings: Master Install Kit uses premium Timken bearings for long-lasting, reliable performance
• 10-bolt fitment: Designed specifically for GM 8.6" differentials with 10-bolt rear cover and 10-bolt ring gear
• Ring gear diameter: 8.5"
• Y.E.S. Plan eligible: Yukon's lifetime no-questions-asked warranty covers the gear set kit for as long as you own the vehicle

Whether upgrading for larger tires, improving towing performance, or restoring worn factory gears, the YGK2025 simplifies the re-gear process by consolidating all required components into one convenient package. Ring gear, pinion, bearings, seals, and all install hardware are included — no separate part sourcing required.