USA Standard's Spartan Locker 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 and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.
AMC Model 20
Chrysler 8.25
Dana 30
Dana 35
Dana 44
Dana 44 HD/Aluminum
Dana 60
Ford 8.8
Ford 9"
GM 12 Bolt
GM 8.5
Nissan Titan
Samurai
Toyota 4 Cylinder 8"
Toyota 7.5"
Toyota Land Cruiser
Toyota TV6
