The right side is a couple of inches lower. I can’t see much on the Px side up front & wondering if the bolt goes into the cab area, or how to get to it? Pictures, the right side is higher. There is a flexible splash’s guard guard along the space beneath the door. It’s very low on the Px side. The back ones look OK and have the rubber bushings in place.
1953 Chevy 153A 3/4-ton Working on my project since 2015 Follow along in my DITY