3.50 Ford 9in Pro Gear 35 Spline

The 3.50 Ford 9in Pro Gear 35 Spline from RICHMOND is a precision-engineered ring and pinion set designed for serious Ford 9-inch differential builders and hot rod enthusiasts. This gear ratio component is essential for custom vehicle builds where performance, durability, and reliability under high-stress conditions are non-negotiable. Whether you're constructing a street rod, off-road rig, or high-horsepower muscle car, the Pro Gear lineup delivers the quality and consistency that separates professional builds from amateur installations.

The 3.50 ratio designation refers to the gear reduction—for every 3.50 turns of the ring gear, the axles complete one full rotation—making this ratio ideal for highway cruising while maintaining adequate pulling power. The 35-spline design indicates the number of teeth engagement points on the axle splines, providing superior load distribution and strength compared to lower-spline counts. RICHMOND Pro Gear sets are manufactured using premium materials and tight tolerances, ensuring smooth mesh patterns, reduced noise, minimal backlash, and extended service life even in competition or severe-duty applications. The compact dimensions and 20.1-pound weight make installation straightforward without requiring exotic fabrication or modifications to stock differential housings.

This gear set is ideal for street machines, cruisers, and daily-driven hot rods where a 3.50 ratio balances acceleration and fuel economy. Builders working with stock or slightly modified Ford 9-inch housings will find installation straightforward using factory-spec carriers and shims. Professional mechanics and experienced enthusiasts appreciate RICHMOND's reputation for repeatable quality and will benefit from the Pro Gear series' ability to handle both moderate boost and naturally aspirated power levels without premature wear or catastrophic failure, making it a smart investment for any serious build.