Richmond Gear 79-0045-1 Pro Gear Ring and Pinion Set Fits select: 1966-1973 FORD MUSTANG, 1975-1986 FORD F150

Ring and Pinion - Pro Gear - Ring and Pinion Set - Pro Gear - Ring and Pinion Set - Fits Ford 9 in. - 4.11 Ratio - 37-9 Teeth - 9 in. Dia. Ring Gear - 1.313 in. Dia. Pinion - 35 Spline. Features: Designed For Drag Racing. RICHMOND Performance Products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities at our plant in Liberty, South Carolina. RICHMOND is the leading manufacturer of professional quality, hi-performance ring and pinion sets. For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! The superior quality of RICHMOND Performance Products is a result of continual research and development, outstanding design and state-of-the-art manufacturing. Extensive testing is performed on all Richmond products. Engineered to perform faster and more reliable, our products are winners both at the Daytona 500 and U.S. Nationals for decades! RICHMOND is proud to offer two series of Powertrax extreme traction differentials to satisfy the most demanding requirements. Lock-Right is proven for brute force off-road applications. The new Powertrax system is the premier line that combines the highest degree of traction output with superb street driving characteristics. RICHMOND's Bullet Proof transmissions are packed with power and speed. The superior quality is a result of constant research and development and extensive testing at our Liberty, South Carolina facility. Outstanding engineering design has made the DOUBLE DIAMOND gearing the winner at the track or on the street. Professional quality and our enthusiastic approach to drivers who demand winning performance are built into every transmission and gear set that carries the RICHMOND name.