Toyota 43502-34060 Front Axle Hub Sub-Assembly, Left

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To remove the hub/bearing assembly, start by removing the dust cover or grease cap and loosening the driveaxle/hub nut on 4WD models. Then, loosen the wheel bolts, raise the vehicle, and remove the wheel. Next, remove the brake caliper, caliper mounting bracket, and brake disc from the knuckle. Make sure to support the brake caliper with a length of wire or rope. If the brake disc is stuck, use two bolts to press it off the hub assembly. After that, remove the hub/bearing assembly mounting bolts from the front of the steering knuckle and take out the assembly. Replace the O-ring on the hub. For bearing replacement, it is recommended to take the hub and bearing assembly to a professional mechanic or automotive machine shop. To install the hub/bearing assembly, ensure that the mounting surfaces inside the steering knuckle and on the drive-axle splines (4WD models) are smooth and free of burrs and nicks. For 2WD models, install the assembly to the steering knuckle and tighten the bolts. For 4WD models, lubricate the driveaxle splines with multi-purpose grease and place the assembly onto the steering knuckle, tightening the bolts. Install a new driveaxle/hub nut but do not tighten it yet. Then, install the brake disc, caliper mounting bracket, and caliper, and tighten the fasteners. Install the wheel, remove the jackstands, and lower the vehicle. Finally, tighten the driveaxle/hub nut while an assistant applies the brakes, and tighten the lug nuts.

To replace the axleshaft assembly, start by releasing the parking brake and raising the rear of the vehicle. Support it securely on jackstands and block the front wheels. Remove the wheel and, if equipped, the brake drum. If the vehicle has rear disc brakes, remove the caliper and disc. Remove the ABS sensor if the vehicle is equipped with ABS. Remove the brake assembly. Disconnect the parking brake cable and the hydraulic brake line to the wheel cylinder. Remove the four backing plate mounting nuts to detach the axleshaft from the rear axle housing. Pull the axleshaft out of the rear axle housing and remove the O-ring from the rear axle housing. Discard the old O-ring and install a new one before installing the axleshaft. Use a seal removal tool or a big screwdriver to remove the axleshaft inner oil seal from the axle housing. Use a seal installer or a big socket to install the new seal. If the axleshaft, bearing, or outer oil seal needs to be replaced, take the axleshaft assembly to an automotive machine shop. Drive a new axleshaft inner seal into the end of the axle tube with a seal installer or a big socket, and coat the lip of the seal with clean oil or multi-purpose grease. Install a new axle housing O-ring, applying a light coat of oil to it. Ensure the axleshaft is clean and free of burrs or metal splinters. Deburr any surface irregularities to prevent damage to the seal during installation. Lightly coat the axleshaft with clean oil and insert it into the axle housing, making sure the splined inner end doesn't damage the lip of the new axleshaft seal. Finally, tighten the four backing plate mounting nuts to complete the installation.

To remove the hub/bearing assembly, start by removing the dust cover or grease cap and loosening the driveaxle/hub nut on 4WD models. Then, loosen the wheel bolts, raise the vehicle, and remove the wheel. Next, remove the brake caliper, caliper mounting bracket, and brake disc from the knuckle. Make sure to support the brake caliper with a length of wire or rope. If the brake disc is stuck, use two bolts to press it off the hub assembly. After that, remove the hub/bearing assembly mounting bolts from the front of the steering knuckle and take out the assembly. Replace the O-ring on the hub. For bearing replacement, it is recommended to take the hub and bearing assembly to a professional mechanic or automotive machine shop. To install the hub/bearing assembly, ensure that the mounting surfaces inside the steering knuckle and on the drive-axle splines (4WD models) are smooth and free of burrs and nicks. For 2WD models, install the assembly to the steering knuckle and tighten the bolts. For 4WD models, lubricate the driveaxle splines with multi-purpose grease and place the assembly onto the steering knuckle, tightening the bolts. Install a new driveaxle/hub nut but do not tighten it yet. Then, install the brake disc, caliper mounting bracket, and caliper, and tighten the fasteners. Install the wheel, remove the jackstands, and lower the vehicle. Finally, tighten the driveaxle/hub nut while an assistant applies the brakes, and tighten the lug nuts.