Toyota 48630-0C010 Front Suspension Upper Control Arm Assembly Left

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Loosen the wheel lug nuts, raise the front of the vehicle and support it securely on jackstands. Apply the parking brake. Remove the wheel. If equipped with ABS, disconnect the speed sensor wiring harness from the upper control arm and steering knuckle. Remove the inner fender apron seal. Remove the cotter pin, then loosen the upper balljoint nut a few turns. Using a two-jaw puller or a picklefork-type balljoint separator, separate the balljoint from the upper control arm. Caution: Don't allow the steering knuckle to fall outward, as the brake hose may be damaged. It's a good idea to wire the steering knuckle to the coil spring so this doesn't happen. Remove the nut, washer and pivot bolt and detach the upper control arm from the frame. Remove the arm. Inspect the bushings for wear and deterioration. If they're cracked or damaged, take the arm to an automotive machine shop and have new bushings installed. Installation is the reverse of removal. Tighten all suspension fasteners, and use a new cotter pin on the upper control arm balljoint nut. If necessary, tighten the balljoint nut a little more to align the hole in the ballstud with the slots in the nut - don't loosen the nut to achieve this alignment. Note: The pivot bolt/nut should be tightened with the vehicle at normal ride height. This can be done after the vehicle has been lowered to the ground (on vehicles with adequate clearance), or can be simulated by raising the lower control arm with a floor jack. Tighten the lug nuts. It's a good idea to have the wheel alignment checked and, if necessary, adjusted.

Remove the lower arm mounting bolts and nuts, and maneuver the arm out of the vehicle.

When working on the rear suspension, if necessary, you should remove the rear coil spring or airbag. If equipped, also remove the rear airbags assembly.

After removing the wheel, you should proceed to remove the under-vehicle splash shield.

After the upper control arm is installed, follow these final steps:Tighten the lug nuts.Consider having the wheel alignment checked and adjusted if necessary to ensure proper alignment.

After dealing with the shock absorber/coil spring assembly, remove the bolts and detach the stabilizer bar links from the lower control arms.