After a boiling hot summer and many months of illness I am finally ready to resume work on the 74 CJ6 build. I want to start with some work on the fiberglass tub I have. I am most concerned with the crack next to the tailgate.
I had someone who is well versed in fiberglass look at it and he is not sure it can be fixed without tearing the back end of the tub apart. I don't want to do that much work on this tub as its not that good of a tub anyways. I have no investment in it and I still want to use it so I am looking for another solution for this issue. We discussed this issue and came up with the idea of grinding a bevel along the cracks, filling them with resin (squirt it in with a syringe), adding some fiberglass sheet and resin behind the horizontal crack under the tailgate (can't get to the backside of the vertical part), then sanding flat. After that I would go to a local metal shop and have a 1/8" thick sheet of steel cut and bent to fit the whole back of the tub. It would be like this and I would add the shape to the wheelwells.
I would then use an adhesive and bolts to attach it to the back of the tub and then cut for the tailgate opening. We figured the metal would add some strength to the back of the tub so it would not crack any worse. I am not concerned with aesthetics as this is going to be a driver not a beauty queen. The tub is going to be cleaned up, the nicks filled and sanded, rattle canned with etching primer, then painted with tan tractor paint from a rattle can. The interior is going to be done with tan monsterliner.
Do you think this is a realistic plan for this repair? The rest of the tub repair is pretty minor (filling holes, nick/chips, and topcoat that flaked off around the holes).