Thanks for the responses. I plan to mount the rear fenders last. I understand how the parts mount. I just don't know how hard it is to get the running boards and splash shield on (without scratching or tweaking anything) with the bed in place. Since I usually work by myself I didn't want to have to raise the bed and try to slip the other parts in at the same time.

It sounds like putting the bed on first will work fine. If anything, my splash shield may be squashed a little from the previous bed "mounting". I tried to restore the curve as much as possible and had to weld on new tabs for the fender mount.

Chuck