5.13 Ratio Ring and Pinion Gear Set

The USA Standard Gear ring and pinion gear set is a high-performance upgrade engineered for Ford 8.8-inch reverse rotation differentials. With a 5.13 ratio, this set is designed to restore acceleration and improve vehicle efficiency, especially when larger tires have been installed. It features an 8.80-inch ring gear diameter and 10 ring gear bolts for robust performance. The 30 spline pinion ensures a secure connection. These gears are crafted using state-of-the-art software and manufacturing technologies, promising durability and ease of installation. They are ideal for vehicles used for towing, hauling equipment, racing, or off-roading. By changing to a higher gear ratio like 5.13, drivers can achieve better power transfer to the ground, reducing stress on the engine and transmission during demanding use cases. Installation of new gears in an axle typically requires specialized tools, including a hydraulic press and dial indicator for correct setup. It is also recommended to purchase a master overhaul kit, which contains essential components like new bearings, seals, shims, and a pinion crush sleeve, ensuring reliable and quiet operation for years to come. USA Standard backs their ring and pinion gears with a one-year warranty against manufacturer defects.