3.73 Ratio 30-Spline Ring and Pinion Set

This Richmond Gear Excel Ring and Pinion Gear Set is engineered for GM 10-bolt differentials, offering a 3.73 gear ratio for improved performance. The kit includes a 30-spline pinion and is designed to fit 3-series carriers. Constructed from robust 8620 steel alloy, this gear set ensures durability and reliability under demanding conditions. The ring gear measures between 8.5 and 8.625 inches in diameter, with a 41-tooth count, and the pinion features an 11-tooth count. The pinion shaft diameter is 1.626 inches, and the ring gear uses a 10-bolt mounting pattern. Richmond Gear is known for its high-performance driveline components, and the Excel line specifically aims to provide reliable parts for enthusiasts. This gear set is sold as a complete kit, providing all necessary components for installation, assuming standard differential case applications. For optimal performance and longevity, professional installation is recommended.