GM 8.875in Ring & Pinion 3.73 Ratio

The GM 8.875in Ring & Pinion 3.73 Ratio from Motive Gear is a precision differential gear set engineered for drivers seeking improved acceleration and highway cruising balance in their GM vehicles equipped with an 8.875-inch rear differential. Whether you're upgrading a performance build, towing frequently, or fine-tuning your vehicle's gearing for specific driving conditions, this ring and pinion combination delivers the mechanical advantage you need.

The 3.73 ratio sits in the sweet spot for many applications—more aggressive than stock on numerous models, yet still maintaining reasonable fuel economy and engine RPM on the highway. Manufactured to OEM tolerances and specifications, the 8.875-inch ring and pinion pair is precision-cut from high-strength alloy steel to withstand sustained torque and shock loading without premature wear or backlash. Motive Gear's heat treatment and quality control ensure smooth, quiet operation under load—critical for both street and performance applications.

This ring and pinion set is ideal for GM vehicles with an 8.875-inch rear differential seeking a modern, effective gear ratio upgrade without a complete axle swap. Installation requires a qualified mechanic or shop with proper tools and knowledge of differential assembly to ensure optimal performance and reliability.