Toyota 48790-42020 Arm Assembly, Upper Control, Rear Left

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To remove the control arm, first loosen the wheel lug nuts on the side to be dismantled, raise the front of the vehicle, support it securely on jackstands, and remove the wheel. Next, disconnect the stabilizer bar link from the control arm, then remove the bolt and two nuts securing the balljoint to the control arm. Use a prybar to disconnect the control arm from the steering knuckle by removing the bolt and nuts, and prying the control arm and balljoint apart. Support the subframe with a floor jack, unbolt, and lower it just enough to allow removal of the control arm fasteners. Slowly lower the subframe to remove the front and rear control arm mounting fasteners, then remove the control arm. For inspection, check the control arm for distortion and the bushings for wear, replacing parts as necessary, and do not attempt to straighten a bent control arm. For installation, raise the outer end of the control arm with a floor jack to simulate normal ride height before tightening the pivot bolt. Installation follows the reverse order of removal, ensuring all fasteners are tightened. Finally, install the wheel and lug nuts, lower the vehicle, tighten the lug nuts, and consider having the front wheel alignment checked and adjusted if necessary after completing the job.