Richmond Gear PRO Gear Differential Ring and Pinion Sets

The Richmond Gear PRO Gear Differential Ring and Pinion line is purpose-built for drag racing and competition applications, delivering race-proven durability under the most demanding drivetrain conditions. Engineered specifically for hard launches and severe heat cycling, PRO Gear sets reflect Richmond's decades-long commitment to providing competitors with the strongest, most reliable gear sets available across a wide range of differential housings.

Key Features:

• Race-Dedicated Construction: Designed exclusively for competition use where extreme torque loads, repeated hard launches, and severe heat cycling demand more than a standard street gear can provide
• 9310 Steel Alloy Ring Gears: Ring gears are manufactured from 9310 steel — a softer, more malleable alloy specifically selected for its superior resistance to breakage under the shock loads of racing
• First-Run Steel Only: Richmond uses only first-run, never-recycled steel in all ring and pinion production, ensuring consistent metallurgical integrity in every set
• Reduced Rotating Weight: PRO Gear sets deliver significant rotating weight reduction compared to standard gear sets, improving drivetrain efficiency and throttle response
• Ground Pinion Threads: Precision-ground pinion threads ensure accurate, trouble-free installation and consistent bearing preload setup across all available ratios
• Computer-Controlled Heat Treatment: A proprietary heat treatment process enhances strength and wear resistance throughout the entire gear tooth profile
• Factory-Matched Pairs: Every ring and pinion is supplied as a factory-matched set, identified by matching numbers on both components for verified tooth geometry and optimal mesh pattern
• 2-Year Warranty: Backed by Richmond's industry-leading 2-year / 100,000-mile warranty coverage for non-competition use applications

PRO Gear sets are available across a wide selection of gear ratios and differential housing fitments to suit a variety of competition builds. Gear ratio and carrier break selection should be matched to vehicle weight, horsepower, tire size, and transmission type to maximize performance.

About Richmond Gear: Richmond Gear has been the trusted drivetrain partner of professional racing teams for over 80 years, with victories at the Daytona 500 and NHRA U.S. Nationals. The PRO Gear ring and pinion line carries that championship legacy to every competition build.