I've been suspicious of this for a long time (years). Whenever I'd look at my car straight on it looked a little lop-sided but it was just subtle enough that I wasn't 100% sure. Now I finally broke out the ruler and confirmed that my passenger side is lower than my drivers side by a whole inch along the entire length of the car measuring to the body panels, not frame. What would cause this? I'd like to have everything nice and even.

 

You need to measure with someone of average weight (or better yet, of your weight) in the driver's seat and then adjust.