When driving over a curb/bump with the right side of vehicle I'll hear a creak from passenger side rear. Interestingly this does not happen if I go over the bump with both wheels so I'm wondering if it has something to do with the rear sway bar bushings or end links. Also I cannot seem to replicate the creak by pushing down on the vehicle - I can only hear it during driving. I jacked up the car to take a look at the suspension components. Do these sway bar bushings look a bit degraded?