Wheel Stud / Lug Nut: Service and Repair

NOTE: Before proceeding with this procedure, review SERVICE WARNINGS AND CAUTIONS found under Service Precaution.

Use the following procedure to remove and install one of five studs on one wheel hub.

REMOVAL
1. Raise the vehicle, refer to Maintaince for procedure.
2. Remove the front tire and wheel assembly.






3. Remove the two guide pin bolts securing the front disc brake caliper to the steering knuckle.
4. Remove the disc brake caliper from the steering knuckle. The caliper is removed by first tipping either the top (right side) or bottom (left side) of the caliper away from the brake rotor, then pulling the caliper off the opposite end's caliper slide (on the knuckle) and rotor.
5. Hang the caliper out of the way using a wire hanger or cord. Do not support the caliper by letting it hang by the hydraulic hose.
6. Remove any retainer clips from the wheel mounting studs. Remove the brake rotor from the front hub .

CAUTION: Do not hammer wheel mounting studs out of the hub. Damage to the wheel bearing will occur, leading to premature bearing failure.






7. Install a wheel mounting nut on the wheel mounting stud being removed from the hub far enough so the threads on the stud are even with end of lug nut. Rotate the hub so the stud requiring removal is aligned with notch cast into front of the steering knuckle. Install Remover, Special Tool C-4150, on hub flange and wheel stud.
8. Tighten the remover, pushing the wheel mounting stud out the rear of the hub flange. When the shoulder of the stud is past the flange, remove the remover from the hub. Remove the nut from the stud, then remove the stud from the flange.

INSTALLATION






1. Install the wheel mounting stud in the flange of hub from the rear side. Install several washers and a wheel mounting nut on the stud. The wheel mounting nut must be installed with the flat side of the wheel mounting nut against the washers to eliminate binding.
2. Tighten the wheel mounting nut. This will pull the wheel mounting stud into the flange of the hub. When the head of the stud is fully seated against the rear of the hub flange, remove the wheel mounting nut and washers from the stud.
3. Install the brake rotor on the hub.






4. Install the disc brake caliper (with pads) on the brake rotor and steering knuckle. The left side caliper is installed by first sliding the top of the caliper past the top abutment on the steering knuckle to hook the top edge of the caliper, then pushing the lower end of the caliper into place against the knuckle. The right side caliper is installed by first sliding the bottom edge of the caliper past the lower abutment on the steering knuckle to hook the lower edge of the caliper, then pushing the top of the caliper into place against the steering knuckle.
5. Install the two guide pin bolts securing the front disc brake caliper to the steering knuckle. Tighten the guide pin bolts to a torque of 22 Nm (192 inch lbs.).
6. Install the tire and wheel assembly. Install the wheel mounting nuts and tighten them to a torque of 135 Nm (100 ft. lbs.).
7. Lower the vehicle.