Spartan Lockers are ratchet style lockers (similar to Detroit Lockers) that replace the differential spider gears to provide reliable traction at a low cost. Unlike other "lunchbox" lockers, the Spartan locker's design does not use thrust washers and has a revolutionary spring and pin design that makes them very easy to install without needing to remote the differential from the axle. The couplers and drivers are made from 9310 steel for added strength and everything is covered by a one year warranty.
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