Spartan Locker for Ford 9″, 28 or 31 spline.

The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect. This unit uses the factory side gears.

Fits Ford 8″ and 9″ with 28 or 31 spline axles

Made from 9310 steel for added strength

Made from 9310 steel for added strength

This unit uses the factory side gears and is compatible with 2 & 4 pinion carriers