I am doing the bed panels now on my truck, and after cutting away about half of them because of the huge amount of rot, I will soon be welding in new metal.

I am planning on putting wheel tubs back there so I can get a wider wheel in the back. I've never done anything like this before and was hoping someone may have some suggestions.

Like should I find the wheel center and cut out a radius a few inches greater than the wheel size I'll use?

How about modifying the bed? Has anyone done a pickup like this with the wooden beds?