Richmond Gear 3.91 Ratio Ring and Pinion 10 Spline Pinion 8.750″ Ring Gear 489 Case – Mopar 8.75″

Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.

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Richmond Gear is famed for their tough and reliable ring and pinion sets. That same level of reliability and precision is available in their other driveline products, including differentials, racing Transmissions, driveshaft components, and more. Racecars around the world rely on Richmond premium gearsets and Transmissions; your hotrod will run better than new with Richmond. We are proud to offer an unmatched selection of premium ring-and-pinion sets and Transmission components engineered manufactured to improve your vehicle’s performance. Richmond premium products are engineered to meet or exceed OEM specifications at a great value. Richmond ring and pinion gearsets are computer-controlled manufactured from the foundry, to cutting gears at 1,000th of an inch precision, to heat-treating the finished product. This consistently provides some of the strongest gears possible. Richmond’s “bulletproof” Transmissions are packed with power and speed. Their superior quality is a result of constant research, development, and extensive testing at our state-of-the-art facilities. Outstanding engineering design has made the Double Diamond gearing the winner at the track and on the street. Richmond drivers demand quality in their winning performances. Quality that is built into every Transmission and gear set that carries the Richmond name.

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