Replacing a Damaged Radius Arm Bushing with a New One
The radius arm bushing on your vehicle serves as the suspension link to control wheel motion. It's connected on one end to the axle of your car, while the other end is linked to the chassis or vehicle unibody. When the radius arm bushing of your car gets broken or wears out, you need to change it immediately to prevent damaging the other nearby components of your car. You don't have to worry since we have provided below a step-by-step guide on replacing your vehicle's radius arm bushing:
Difficulty level: Moderate
Tools to be prepared:
- Jack and jack stands
- Socket set
- Safety gloves
Step 1: Use the jack the raise your car. Support it with jack stands by placing the stands underneath the frame side rails.
Step 2: Uninstall the front wheel and tire assembly by loosening the lug nuts. Set the assembly aside and detach the front stabilizer bar from the stabilizer link, if you have any installed.
Step 3: Take out the shock absorber-to-lower bracket connecting bolt and nut. Then, pull the front shock absorber to detach it from the radius arm. If your car has quad front shock absorbers, you may need to remove the connecting nut and forward shock lower mount from the bracket's stud.
Step 4: Remove the spring lower retainer connecting bolt from the inner side of the spring coil. Loosen the axle pivot bolt and uninstall the radius arm-to-frame bracket nut.
Step 5: Take out the radius arm rear plastic spacer and insulator.
Note: As you lower the axle, make sure it's supported on the jack during the removal and installation of the radius arm. Don't let it hang by the brake hose to prevent further damage to the component.
Step 6: Detach the 2 bolts connecting the front axle to the radius arm bracket to the axle tube. Then, take out the spring retainer, insulator, lower spring seat and stud, radius arm bracket-to-axle tube bolt, and the front axle radius arm bracket.
Step 7: Gently push the axle forward and remove the radius arm from the axle before removing it from the frame bracket. Install the forward washer, insulator, radius arm, and rear spacer together with its radius arm and washer.
Step 8: Place the radius arm, forward shock mount bracket, and front axle-to-radius arm bracket on the axle. Then, tighten the radius arms and install the spring lower seat with the locating tab.
Step 9: Put the lower spring retainer and nut in their appropriate place and tighten it. Attach the stabilizer bar to the front stabilizer bar link and tighten it. Then, place the front disc brake calipers, if you removed it earlier.
Step 10: Examine the brake hydraulic hoses for damage. Get the front wheel and tire assembly that you removed earlier and install it where you removed it.
Step 11: Lower your car from the jack and stands. While the weight is on the suspension, tighten the axle pivot bushing bolt and nut.