Upper Arm Replacement

Upper Arm Replacement

Special Tools Required
Ball joint remover, 32 mm 07MAC-SL0A102

1. Remove the front damper.
2. Remove the wheel sensor bracket (A) from the upper arm (B).

NOTE: Use new wheel sensor bracket on reassembly.





3. Remove the lock pin (A) from the upper arm ball joint, then loosen the nut (B).

NOTE: During installation, install the new lock pin as shown after tightening the castle nut.





4. Disconnect the upper arm ball joint from the knuckle using the ball joint remover.
5. Remove the upper arm mounting bolts (A), then remove the upper arm (B).

NOTE: Use the new upper arm mounting bolts during reassembly.





6. Install the upper arm by inserting a rod (A) of appropriate size (0.D. 6 mm/L: 300 mm) into the positioning holes (B), and place the upper arm (C) on the rod to position it before tightening the upper arm mounting bolts.





7. Install the remaining parts in the reverse order of removal, and note these items:

^ First install all the components and lightly tighten the bolts and nuts, then raise the suspension to load it with the vehicle's weight before fully tightening to the specified torque values. Do not place the jack against the ball joint pin of the knuckle.
^ Be careful not to damage the ball joint boot when installing the knuckle.
^ Before connecting the ball joint to the knuckle, degrease the threaded section and tapered portion of the ball joint pin, the knuckle connecting hole, and the threaded section and mating surface of the castle nut.
^ Torque the castle nut to the lower torque specification, then tighten it only far enough to align the slot with the ball joint pin hole. Do not align the castle nut by loosening it.
^ Before installing the wheel, clean the mating surfaces on the brake disc and the inside of the wheel.
^ Check the front wheel alignment, and adjust it if necessary.