How to Remove the Hub Bearing on a 1989 Chevrolet S-10 Blazer

Replacing the wheel bearings in your 1989 Chevy S10 Blazer involves replacement of the entire hub assembly, as it is a complete assembly and not separately serviceable. A replacement hub assembly and bearing is available from most auto parts stores, or may even be available from select Chevy dealers. Removal of the hub assembly may take several hours, but you can do the job at home with basic hand tools and avoid a large repair bill for the work.

Tools Used: Lug wrench, Jack, Jack stands, Socket set, Ratchet, Breaker bar, Needle nose pliers, Hub nut socket, Cold chisel, Hammer

Remove Hub Bearing

Loosen the lug nuts on the wheel where the bearing is defective, using a lug wrench or socket and breaker bar. Raise the front of the truck with a jack and position a set of jack stands under the frame to support the truck.

Remove the lug nuts and pull the tire and wheel off the vehicle; set it aside for now. Locate the two retaining bolts at the top of the brake caliper and loosen the bolts with a socket and ratchet.

Remove the brake caliper bolts then lift the caliper off the brake rotor and support it with a piece of wire or twine. Do not allow the caliper to hang on the brake hose, as the weight of the caliper will damage the hose.

Slide the brake rotor off the hub assembly and set it aside. Locate the castle nut in the center of the hub and remove the cotter pin that retains the nut using a set of needle nose pliers. Discard the cotter pin, as a new one will be used during reassembly.

Place a hub nut socket on the nut, and using a breaker bar, rotate the nut counterclockwise. Remove the nut from the shaft. Move to the rear of the steering knuckle and locate the three hub retaining bolts that thread into the back of the knuckle and hub.

Remove the three hub retaining bolts with a socket and ratchet. Set the bolts aside and move back to the front of the knuckle.

Separate the hub from the knuckle using a cold chisel and hammer, driving the chisel into the seam between the two pieces. Pull the hub out of the knuckle and off the axle shaft. Discard the old hub if the bearing is defective.

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