Start by removing the wheel and tire from your 248 RBI and then take off the brake caliper and rotor. Following this, remove the axle shaft and remove the lock wedge from the adjustment nut and finally use Socket DD-1241-JD to remove the adjustment nut. Once the hub assembly is removed, the outer axle bearing slides out. Use Installer 5064 and Handle C-4171 to take out the grease seal and inner axle bearing and a brass drift and hammer to extract the bearing cups from the hub. Before putting in the bearing cups, use Installer 8151 and Handle C-4171 to remove any dirt in the hub and clean the axle bearings. Fill the inner and outer bearings with Mopar wheel bearing grease and grease the cup surfaces you see inside and outside the skin. Add the inner bearing to the hub, then fix a new grease seal with Installer 8149 and Handle C-4171. Look at the connection between the bearing and seal and the axle tube, removing any burrs or roughness found. Slide the hub onto the axle but be careful not to allow the seal to touch the axle tube while you install it. When you have the outer axle bearing installed, place Socket DD-1241-JD over the hub so you can install and tighten the hub bearing adjustment nut to the correct torque of 163 - 190 Nm (120 - 140 ft. lbs.), while rotating the wheel. Unscrew the adjustment nut by 1/8 to 1/3 of a turn to obtain 0.025 - 0.250 mm (0.001 - 0.009 inch) of wheel bearing end play. Tap the locking wedge into the spindle keyway and adjustment nut before locking it into a new position in the adjustment nut. The last step is to install the axle shaft, the brake parts, wheel and tire assembly.