Yukon Gear High Performance Gear Set For Ford 9in in a 3.89 Ratio

If you're looking to change the gearing in your Ford 9-inch differential, this Yukon Gear & Axle high-performance ring and pinion set is a solid option. It comes with a 3.89 ratio, which is a popular choice for balancing highway drivability with improved acceleration, especially if you've added larger tires or more horsepower. This set is designed to fit a wide range of Ford vehicles, including popular models like the Ford Bronco, F-150, and Mustang, among many others.

Yukon engineers use advanced heat-treating techniques and rigorous testing to ensure these gears meet exacting standards. The tooth surface finish is designed to reduce friction and heat, which is crucial for high-torque conditions and longer races. They're made from high-grade steel and fit to OEM specifications, meaning you can expect a reliable performance upgrade. Yukon also backs these gears with a 1-year warranty against manufacturing defects, and offers an optional lifetime Y.E.S. Plan for added peace of mind.