Toyota 42450-52060 Rear Axle Bearing And Hub Assembly, Left

The rear hub and bearing are a sealed unit, and if the rear bearings are worn, a new hub must be fitted. On models with ABS, the rear wheel sensor is attached to the hub and can be removed and fitted to the new unit, although this task is best handled by a Toyota dealer. The rear hub bearings are non-adjustable. To check for excessive wear, chock the front wheels, jack up the rear of the vehicle, and support it on axle stands while fully releasing the handbrake. Grip the rear wheel at the top and bottom and attempt to rock it; excessive movement or roughness when spinning the wheel indicates worn hub bearings. To remove the hub, loosen the rear wheel nuts, chock the front wheels, jack up the rear, and support it on axle stands before removing the rear wheel. After removing the brake drum, inspect the rear brake components and wheel cylinder for wear and leakage. For models with ABS, disconnect the wiring plug for the rear wheel sensor using a small screwdriver. Loosen the four bolts securing the hub and brake backplate to the trailing arm, support the hub and backplate, and remove the bolts to withdraw the hub through the rear shoe assembly. Temporarily refit the bolts to hang the backplate and cable-tie it to the trailing arm to prevent straining the brake pipe and handbrake cable. Refitting is the reverse of removal, with specific attention to transferring the rear wheel sensor to a new hub by a Toyota dealer if applicable, cleaning corrosion from mating surfaces, applying copper grease for easier future removal, and tightening all fixings to the specified torque before refitting the brake drum.

Apply a light coat of lubricant to the inside of the hub carrier and the outside of the new bearing. Start fitting the bearing by offering it squarely into the carrier, then give it a few light taps with a hammer all around to locate it, ensuring the bearing remains square to avoid jamming.