4WD offers ring and pinions in various gear ratios to work with larger tire combinations commonly found in Jeeps. Drivetrain and differential components offer robust upgrades to hold up to the stresses of off-road use. Detroit Lockers, ARB Air Lockers, spools and limited slips are traction aiding devices that will have you hooked up on the trail or the highway. Don’t forget, axle service parts are available in individual units and master overhaul kits containing everything you need to rebuild your Jeep’s axle. We carry everything from stock axle shafts to higher spline count units that stand up to harsher torque loads you will inevitably encounter on your journeys.