The control arm strut, also called the radius rod or strut rod, serve to locate the lower control arm and prevent fore-and-aft movement. Except for impact damage, the rods rarely fail. The rubber bushings on each end are prone to fatigue and wear, and may need to be replaced after a few years. This part is found on all 960/S90/V90 models.
REMOVAL & INSTALLATION
See Figure 1
- Disconnect the negative battery cable.
- Raise and safely support the vehicle on jackstands.
- Loosen the rod-to-bracket bolt but don't remove it.
- Remove the nut at the control arm. This is sometimes easier said than done; the control arm bolt can be very tight.
- Once the front nut is loosened, the back mount may be removed and the rod placed on a workbench.
- If the bushings are to be replaced, press them free of their mounts and install the new ones.
- Reinstall the rod, attaching the bracket bolt first.
- Make sure the front bushings seat properly in the control arm and that the front nut draws tight against its washer.
- Tighten the bracket bolt to 63 ft. lbs. (85 Nm).
- Tighten the control arm nut to 70 ft. lbs. (95 Nm).
- Lower the vehicle.
- Connect the negative battery cable.