Upper Arm Replacement

Upper Arm Replacement

Special Tools Required
Ball joint remover, 28 mm 07MAC-SL0A202

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





3. Remove the cotter pin (A) from the upper arm ball joint, then remove castle nut (B).

NOTE: During installation, insert the new cotter pin into the ball joint pin hole from the front to the rear of the vehicle, and bend its end as shown.





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





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.

NOTE: Use the new mounting bolts.





7. Tighten the upper arm mounting bolts to the specified torque value.
8. Remove the rod.
9. Install the upper arm in the reverse order of removal, and note these items:

^ First install all of 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 connecting the knuckle.
^ 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.
^ Install a new cotter pin on the castle nut after torquing.
^ Before installing the wheel, clean the mating surfaces on the brake disc and the inside of the wheel.
^ Check the wheel alignment, and adjust it if necessary.