Superior Axle and Gear ring and pinion set F102373L is manufactured to fit Ford 10.25" axle assemblies. This premium ring and pinion set is precision machined to provide a 3.73 gear ratio. This is the long spline version and can be used with Ford 10.5 inch axle assemblies with use of new pinion yoke.

Superior Ring and Pinion sets are manufactured from premium 8620 steel. Computer controlled machining is performed by both Gleason and Phoenix gear cutting machines. Precise heat-treating, honing and lapping is performed to provide ideal contact patterns for smoother,quieter and cooler operation with easier set up.

The F102373L ring and pinion set features a two year warranty against manufacturing defects.

Replaces part numbers:

F81Z4209AA

F10.25-373L