Yukon Gear & Axle YGK2140 10.5" Ford 4.11 Ratio Rear Ring & Pinion Kit with 35-Spline Dura Grip Limited Slip

The Yukon Gear & Axle YGK2140 is a complete differential re-gear package for the Ford 10.5" rear axle, bundling a 4.11 ratio ring and pinion gear set, a Master Install Kit, and a 35-spline Yukon Dura Grip clutch-style limited slip differential (LSD) — everything needed for a full differential rebuild in a single part number.

Designed for the 12-bolt rear cover / 12-bolt ring gear application, this Pro Kit includes a 10.5" ring gear and comes with NP 504493 / NP 949481 inner pinion bearing and race. The Master Install Kit features high-quality Timken bearings along with all necessary small parts to complete the installation efficiently.

Key Features:

• Ring Gear Diameter: 10.5"
• Gear Ratio: 4.11
• Spline Count: 35-spline
• Application: Ford 12-bolt rear cover and 12-bolt ring gear
• Includes Yukon Dura Grip clutch-style limited slip — fully rebuildable positraction unit
• Inner pinion bearing and race: NP 504493 / NP 949481
• Master Install Kit includes Timken bearings and all required hardware
• Backed by Yukon's Y.E.S. Plan — a lifetime, no-questions-asked warranty for as long as you own the vehicle

Yukon's ring and pinion gear sets are manufactured using advanced heat-treating techniques and state-of-the-art quality testing to meet exacting surface finish and structural specifications. The Dura Grip limited slip is a smooth-operating, clutch-style LSD that delivers consistent traction across a wide range of driving conditions and is fully rebuildable for long-term serviceability.

The YGK2140 Pro Kit simplifies the re-gear process by combining premium gears, a comprehensive install kit, and a performance limited slip into one convenient package — saving time and reducing the risk of missing components.