Welding Unibody Seams?

[Tom Goldman]

Originally Posted by Myron Piatek

Tom, I understand a full cage will help, but why would welding the seams not be recommended? It's an awful lot of work, of course, but I can't see how it would hurt.

The problem with welding seams ,especially on an old body with possible rust and remanants of seam sealer, is undercutting the sheetmetal next to the seam and actually weakening the structure rather than making it stronger.
If the body has been chemical stripped or blasted, tig welding the seams with silicon bronze is a good way to do it ,but not mig welding.
The best thing is to make the cage an integral part of the body structure so it does the work ,not the body.