You will want to replace any worn items. A worn bushing can change ride height slightly.

 

I replaced the rubber pieces that the front springs sit in, they have collapsed some. This raised the front right just over 1/2 inch and raised the left front just under 1/2 inch. Now the front sits 1/4 higher on the left with no driver, this is OK, after a driver the front is OK. The shop checked the bushings in the front when removing the springs/control arms and said they were OK. The rear is still 3/4 plus inch higher on left side vs right rear, even with a driver it is still higher and with a passenger it is noticeable going down the road. Car has not been in a wreck. Maybe some of the rear control arms are sticking or not letting the car sit level? Thanks for the help and ideas.