The sway bar end links are replaced when they make noise or if they're found to be broken. The ends of the link are small ball joints and when they wear out they will make a clicking or knocking noise when going over bumps in the road.
To replace the sway bar end links:
- Remove the nuts/bolts that attach the link to the sway bar and the suspension
- Remove sway bar end links
- install new links
- Install new nuts/hardware and torque to manufacturer specifications
Some vehicles are equipped with a front and rear sway bar and both may have these end links.