Hey everyone,
I'm new to this forum and I'm hoping I can get some helpful advice. My car is a 1972 monte carlo and when I bought it back in the spring last year the rear passenger side sagged a little bit lower than the rear driver's side, I was told this was due to the rear air shock on that side being collapsed, which it was. After replacing the rear shocks and springs it still sagged the same and for some time I couldn't figure out why. Then I noticed that on the front suspension between the upper control arm shaft and where the shaft is bolted to the frame there was about an inch worth of spacers and on the passenger's side and not any on the driver's side. Out of curiousity I took out some of the spacers on the passenger's side and found that it made my car sit more level, however it also made the top of the passenger side tire stick out further then the bottom. I know my alignment is pobably out of whack now but at least the car sits level so I won't ruin my new coil springs, just my front passenger side tire. All my front and rear control arm bushings are very dry rotted and need replacing, could this be the source of my problem. I'm very concerned that my frame may be bent or tweaked. I'm just looking for some advice in terms of how to tell what the porblem may be and/or how to tell if I am dealing with a bent frame:angry: Thank you for your time!

Taking the shims out of the front just ruined your front end alignment. By removing shims you changed both the camber and caster settings. Changing these settings alone shouldn't have any affect on how level the rear of the car sits. The "leaning to one side" issue is probably due to a bent frame or damaged suspension component (probably in the rear).

Bottom line: it sounds like you need to have the front and rear suspensions rebuilt (new bushings, ball joints, tie rods) if things are dry rotted and worn. Before doing that work, however, get the car to a body shop that has a frame machine and get it checked. If it is tweeked, have them straighten the frame first, then do you suspension rebuilds and get a new alignment.

Before you drive the car again, make sure to replace the shims you removed. Be sure to reinstall the same exact shims into the same exact location.