Hello, My project (38 Dodge Humpback panel Truck) has been in an accident or two in it's lifetime. Before I remove it from the frame, what measuring techniques and bracing should I use to make sure it's square before I do all the panel patching? I'm not sure it is out of line, but the top support in the opening is mis shapened enough to make me think it might be from body torque due to the accident(s). Thanks for your help.
