GM 457196
Wheel Bearing, Front

Before starting work on the front Wheel Bearing hub you must drain two-thirds of the brake reservoir fluid and lift the vehicle up. Put the wheel assembly aside before adding shielding over the axle joint. Hold up the brake caliper with a wire piece to safeguard the Brake Line before taking off the brake caliper and rotor unit. Pull out the speed sensor electrical plug before taking the bearing speed sensor off its position. First disconnect the drive axle nut and washer before unwinding the Tie Rod End nut from its mount on the knuckle. Remove the hub and bearing assembly with a puller then take out all drive axle and splash shield bolts to pull out the splash shield. Place the steering knuckle in a jack stand and begin disconnecting the upper Ball Joint by loosening its nut and joining the Ball Joint separator tool (J 36607). Use the Ball Joint remover j 35917 to detach the lower Ball Joint from the knuckle before unbolting them both from the corresponding assembly. To install this component efficiently you need the knuckle seal installer (J 36605). Insert the seal into the knuckle using this tool and then link the knuckle to both ball joints before installing the lower Ball Joint with its steering knuckle nut tightened to 128 nm (95 ft. Lbs.) then the upper Ball Joint with its steering knuckle nut torqued to 98 nm (72 ft. Lbs.). After servicing the joints add new cotter pins then fasten the nuts one sixteenth more to thread the pins through the joint studs. Press flat the bent end of each cotter pin against the studs. Place the splash shield properly and fasten its bolts to 16 nm (12 ft. Lbs). Position the drive axle parts into the threaded holes and tighten the bolts evenly to 90 nm (66 ft. Lbs. Force). Secure drive axle washer to its nut before installing outer tie rod and sensor components while screwing the nut to 200 nm and the speed sensor connector. End by placing the brake rotor and caliper in position then pulling off the axle joint cover before adding the tire and wheel components. Lower the vehicle and make sure to monitor the master cylinder fluid to add amount when low. You have to press the brake pedal until it feels firm, inspect the brake fluid again, check the front wheel alignment and measure vehicle trim height prior to taking the vehicle for a test drive.

Install a punch in the rotor vanes.

Reinstall the rotor using the punch to hold it in place.

Replace the bearing, clean related parts, and check for proper fit and lubrication.