Yukon part number SL GM12-30. Fits GM 12 Bolt TRUCK & CAR open carriers. WILL NOT Fit posi carriers.
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 and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect
ONE YEAR warranty
Larger Alignment pins
Heavy Duty Cross Pin
9310 alloy for longer life and added strength