I have an 06 CTTS and I took measurements from the appropriate subframe points to the ground and used them to recalibrate the ride height. It appears to have worked since I now get consistent measurements at those points side to side. However, on the front only, I have about a 10mm height difference from the ground to the fender while at the same time the ground to subframe point is the same side to side. It’s like the fender is 10mm higher vs the subframe on the passenger side. Could be that the fender was damaged at some point however it doesn’t appear to be.

Any other ideas? Could the alignment be so bad that it would cause that?