GM 2500 & 3500 Carriers, Limited Slip Differentials, & Lockers

Installing a quality USA Standard Gear spool is a cost-effective way to get 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard Gear spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outs..

DHD 602-4340 Dirty Locker For GM & Chrysler AAM 11.5" Rear AxleDHD Dirty Locker 38-Spline Rear Differential Unit is the ultimate in street and off-road traction!With all the success of the Yukon Grizzly Locker and our 38 spline axle shafts in the diesel industry, we have finally come up with a s..