Revolution Gear & Axle Ring & Pinion Set for Ford 10.25" Rear Axle (3.73 Ratio, Long Pinion)

This Revolution Gear & Axle ring and pinion set fits the Ford 10.25" rear axle in a 3.73 ratio and uses a long-pinion design. The 10.25" is the heavy-duty full-floating rear found under Ford 3/4-ton and 1-ton trucks, so this set is identified by axle rather than a single model year.

The gears use a 31-spline pinion, a 10.25" ring gear, a 12mm ring gear bolt thread, and heat-treated 8620 steel, in standard rotation. There is no carrier break on this gear family. Because both long- and short-pinion Ford 10.25" housings exist, verify you have the long-pinion variant before ordering.

A 3.73 ratio is a balanced, tow-friendly gear for heavy-duty trucks that haul and tow on near-stock to modest tires. It keeps highway RPM reasonable while delivering the torque a loaded truck needs.

This is a gear set only. It does not include bearings, shims, a crush sleeve, a pinion seal, or a locker – those are sold separately. Confirm the long-pinion Ford 10.25" housing and your carrier before ordering, and have the gears set up by an experienced installer.

Pair this set with a Revolution Ford 10.25" master install kit for a quiet, durable rebuild backed by a 2-year warranty against manufacturing defects.