Yukon Gear & Axle YGK2131 10.5" Ford 3.73 Ratio Rear Ring & Pinion Kit with Master Install Kit and 35-Spline Dura Grip Limited Slip

The Yukon Gear & Axle YGK2131 is a complete re-gear package for the Ford 10.5" rear axle, combining a 3.73 ratio ring and pinion gear set with a Master Install Kit and a 35-spline Yukon Dura Grip limited slip positraction unit. Designed for applications with a 12-bolt rear cover and 12-bolt ring gear, this all-in-one kit delivers everything needed to fully rebuild and upgrade your rear differential in a single part number.

Ring & Pinion Gear Set:

• Ring gear diameter: 10.5 inches
• Gear ratio: 3.73
• Designed for Ford 10.5" rear axle with 12-bolt ring gear and cover
• Manufactured using advanced heat-treating techniques and precision quality testing for superior strength and surface finish
• Covered by Yukon's Y.E.S. (Yukon Extended Service) Plan — a lifetime, no-questions-asked replacement warranty for as long as you own your vehicle

Master Install Kit Includes:

• High-quality Timken bearings throughout
• NP 504493 / NP 949481 inner pinion bearing and race
• All necessary small parts for a complete differential rebuild

Yukon Dura Grip Limited Slip Positraction (35-Spline):

• Provides smooth yet aggressive traction across a wide variety of terrains
• Constructed with a high-strength nodular iron case, forged 4320 chromoly spider gears, and composite clutches for long-lasting performance
• Fully rebuildable design for extended service life
• Proudly assembled in the USA

Whether you're upgrading for larger tires, increased towing capacity, or improved off-road performance, the YGK2131 bundles premium Yukon components into one convenient package — saving time and ensuring all parts are properly matched for a hassle-free installation.