GM 25923942 Steering Knuckle

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To remove the driveaxle/hub, start by loosening the driveaxle/hub nut and the wheel lug nuts. Then, raise the vehicle and support it securely on jackstands. Remove the wheel and the brake caliper with its bracket, supporting them with a piece of wire. Take off the brake disc from the hub and unplug the wheel speed sensor electrical connector if the vehicle has ABS. Mark the strut to the steering knuckle and loosen the strut-to-steering knuckle bolt nuts. Separate the tie-rod end from the steering knuckle arm and remove the balljoint-to-steering knuckle pinch bolt, separating the balljoint from the steering knuckle. Remove the driveaxle/hub nut and push the driveaxle from the hub, supporting the end with a piece of wire. Finally, remove the strut-to-knuckle bolts and carefully separate the steering knuckle from the strut. To install, guide the knuckle and hub assembly into position, inserting the driveaxle into the hub. Push the knuckle into the strut flange and install the bolts and nuts without tightening them yet. Connect the balljoint to the knuckle and tighten the pinch bolt nut to the proper torque specifications. Attach the tie-rod end to the steering knuckle arm and tighten the strut bolts/nuts and the tie-rod end nut to the proper torque values. Place the brake disc on the hub and install the caliper mounting bracket and caliper. Install the driveaxle/hub nut and tighten it securely. Then, install the wheel and lug nuts. Lower the vehicle and tighten the lug nuts and the driveaxle/hub nut to the suitable torque specifications. Finally, have the front-end alignment checked and adjusted if necessary.

Start by loosening the driveaxle/hub nut and the wheel lug nuts.