Yukon Gear & Axle YG F10.5-411-31 Ring & Pinion Gear Set Ford 10.5" 4.11 Ratio

The Yukon Gear & Axle YG F10.5-411-31 is a high-performance ring and pinion gear set engineered for the Ford 10.5" differential (2010 and earlier) in a 4.11 ratio. Featuring a 31-spline pinion, 37 ring gear teeth, 9 pinion teeth, and 12 ring gear bolts, this set delivers the precision and durability needed for demanding street, off-road, and towing applications.

Yukon engineers leverage state-of-the-art gear design, advanced heat-treating techniques, and rigorous quality testing to ensure every gear set meets exacting surface finish and structural standards. The result is a ring and pinion that runs quietly, installs easily, and holds up under serious load.

Key Features:

• 4.11:1 gear ratio — ideal for re-gearing after larger tire upgrades or optimizing towing performance
• 31-spline pinion for maximum torque transfer and durability
• 37 ring gear teeth / 9 pinion teeth
• 12 ring gear bolts
• 10.5" ring gear diameter
• Standard rotation
• Manufactured using advanced heat-treating and precision gear-grinding technology for a quiet, strong gear set
• Designed to handle high horsepower, larger tires, and heavy towing demands
• Backed by Yukon's Y.E.S. Plan — a lifetime, comprehensive protection plan for as long as you own your vehicle
• Sold as a complete ring and pinion set

Yukon Gear & Axle offers one of the widest selections of aftermarket ring and pinion gear ratios on the market, making it easy to find the right combination for your tire size and performance goals. The YG F10.5-411-31 is specifically engineered for Ford 10.5" differentials through the 2010 model year.