With the Z28's rear end. I have noticed that the passenger side rear tire is clearly getting caught or slashed on the inside of the fender well of the body of the car. The thing is that the car appears to sit flat and it is not any easier to push down the passenger side rear then the drivers side of the car. I jacked up the car and checked the location of both springs and the shock, it took some effort but I am able to get the shock to collapse by pushing on it with both hands. I do have Hotchkis LCAs and an Adjustable PHR, I checked the PHR and was not able to get the twist end to come in any more meaning that it appeared maxed out to as short as it would get, also I compared the Hotchkis PHR to a stock one - from the car that I had and they are the same length matching up eyelet to eyelet. I do think this is a suspension problem but am a bit perplexed as to what I should do next, I did take a tape measure and yes the passenger side tire does appear to be further towards the body than the drivers side. I have ROH Synpers on the car but I had them on my IROC as well with no problems, I am not using any adapters or spacers and both rear ends are stock 10 bolt thirdgen rear ends. Though the rear brakes are different - the Z28 is a G92 the IROC just has the stock 88 IROC rear discs. I have had the Snypers on the car since last February and did not notice the tire problem until probably about 6 months ago, also I have a feeling something in the rear suspension is not quite right as I can hear an occassional clunk. I would appreciate a list of things to check, and not ones that start with using different rims, removing the Hotchkis stuff, checking what I already mentioned, or just getting another car