USA Standard Ring & Pinion Gear Set For 11 & Up Ford 9.75in in a 4.56 Ratio

This Yukon Gear & Axle ring and pinion gear set features a 4.56 ratio, designed for Ford 9.75-inch axles found in many trucks and SUVs from 2011 and up. A ratio change like this is often done to compensate for larger tires, helping to bring your speedometer back into calibration and restore lost acceleration. It can also improve towing performance by giving your vehicle more mechanical advantage when pulling heavy loads.

USA Standard Gear, a division of Yukon Gear & Axle, builds these sets to meet or exceed original equipment specifications. They undergo rigorous in-house quality testing, checking dimensions, materials, and fitment to ensure they perform reliably. This particular set is built for the Ford 9.75-inch axle housing, a robust unit used across a wide range of Ford and Lincoln vehicles, including the F-150, Expedition, and Navigator. The 4.56 ratio is a popular choice for those looking to add larger tires or enhance their vehicle's pulling power.

When installing a new ring and pinion set, it's crucial to follow the manufacturer's break-in procedure. This typically involves a period of moderate driving without heavy acceleration or towing, followed by an oil change. This process allows the new gear teeth to properly seat against each other, ensuring long-term durability and quiet operation. This set is designed as a direct replacement for the original gears, but professional installation is recommended due to the precision required for proper gear mesh and backlash settings.