[CarlG]

Thanks to everyone for their suggestions. I'll be spending some time on this on the weekend. I took a couple pictures and some measurements. The first picture is the driver's door and the pin stripe is offset 1/2", the second picture is the passenger door, and the offset is 1/4". Haven't had time to check what the cause, but I'll dig into it.

Oh, and it's been parked in my garage for the last 9 months, as level as most garages.
And it's a late '31 Budd Cab, steel top, indented firewall.