This frame issue is specifically why I sought out a cab & chassis frame for my prostreet build. The cab & chassis frame rails are straight and 34" apart, no fishmouth welds or anything else, just cut the sucker off where you want and go to town.
By the way, unless you're dropping a 540 in it, I don't know that it's proper to say "sport" and "crewcab" in the same sentence
