9.75" Ring and Pinion Gear Set 3.55 Ratio

The USA Standard Gear ZG F9.75-355-11 is a replacement ring and pinion gear set specifically engineered for Ford 9.75-inch rear differentials. This set provides a 3.55 gear ratio, which is a common upgrade for improving torque and performance, particularly for vehicles with larger tires or increased towing needs. Key specifications for this gear set include a 9.75-inch ring gear diameter, a 31-spline pinion, and 12 ring gear bolts. The primary application is for Ford vehicles from 2011 and newer equipped with the 9.75" axle. USA Standard Gear aims to provide reliable components for a confident installation, offering a wide range of ring and pinion sets for various automotive applications. For owners of 2000-2010 Ford vehicles, this gear set can still be utilized, but it requires a conversion bearing kit for proper fitment and installation. This ensures compatibility across a broader range of model years. This USA Standard gear set is compatible with a wide array of Ford and Lincoln models, including the F-150 (2000-2021), Expedition (2000-2002), Navigator (2000-2005), Mark LT (2006-2008), and various E-Series vans (E-150, E-250 Econoline from 2000-2014) and Transit models (Transit-150, 250, 350, 350 HD from 2015-2021).