That's what I want to establish. It appears to be between 1 and 2 inches. I want to get it up on jacks, level the axle and do some accurate measures. I'm assuming that is the way to tell for sure. My concern is that the rear wheel never rubbed before, and a couple of people have commented on the rear being low (and they were looking at the right side) recently, so I want to see if something is giving way. Or if the springs are different heights. Or something else?