GM 8.25" 5.13 Ring and Pinion Gear Set

The USA Standard Gear ZG GM8.25-513R is a ring and pinion gear set engineered for GM 8.25" Independent Front Suspension (IFS) differentials with reverse rotation, featuring a 5.13 gear ratio. Key specifications include an 8.25-inch ring gear diameter, a 10-bolt ring gear, and a 30-spline pinion. USA Standard Gear aims to provide a lower-cost alternative for those needing to replace or upgrade their differential gearing, especially when budget is a primary concern. These gears are noted as not being recommended for vehicles prioritizing quiet operation. Installation considerations include specific requirements for 2010 GM 8.25 IFS models. If using these gears with a 2010 model that originally had older gears, a YCG26018131 carrier case may be necessary. Furthermore, 2010 GM 8.25 IFS front ends originally equipped with a 3.08 gear ratio will require a new carrier when changing to a different ratio. When installing 3.42 and up gears on a factory 3.08 application, the YC G26018131 case must also be purchased. The deck height varies depending on the original gear ratio: 1.780 inches for a 3.08 ratio and 1.920 inches for 3.42 and up ratios. USA Standard Gear provides a standard one-year warranty against manufacturing defects on their ring and pinion sets.