Originally Posted by
Romad
The plan goes like this. Cut rusted area out, treat rust and cut 3/8" plywood to fit in the bottom. Seal wood with resin, wrap plywood with fiberglass, make hangers to attach to body side wall. Fiberglass over and under the car and coat under the well with SEM Undercoat. What ya think?
I think it would be easier to use metal. We used to "aquire" traffic signs back in the day. Sheet steel isn't terribly expensive. Find a guage close to the original, cut out the rusted piece and use it as a template.
Then use a hammer and shape it by beating it over a 2x4 or other block of wood. You can use J-B Weld and some short self tapping screws to attach it. Drill a hole for a drain plug. Just my opinion.