The Allstar Performance Ring & Pinion set, designed specifically for Ford 9-inch differentials, offers a 5.67 gear ratio and a robust 28 spline pinion, ensuring reliable and efficient power transfer. This kit is essential for performance enthusiasts looking to enhance their drivetrain with precision engineering. The compact dimensions (14.9" x 11.1" x 5.3") make it a perfect fit for a variety of racing and off-road applications, supporting your vehicle with the durability and performance expected from Allstar Performance.