Time to get a fuel tank sorted out. Got rid of the cab tank a long time ago and hated the frame mounted poly.

Started with a 22 gal. tank kit from Mustangs Unlimited (Ebay) that includes a sender and filler coupler - $125 delivered.

It easily fits between the frame rails with no interference (except for the rear crossmember which we temporarily removed).





Fabbed a perimeter frame for the tank with 10 foot piece of 1" x 1" x .120" wall tubing ($20). Used existing holes in the tank flange to mount it to the frame.





Added mounting tabs made from 3/16" flat stock and mounted the frame just forward of where the frame rails begin to kick up. Wanted to be sure the filler neck would not interfere with the rear-most brace on the bed. Filling will be accomplished via a trap door in the bed floor.





Nuts welded to the inside of the frame rails will make dropping the tank super easy. Four 7/16" bolts secure the assembly to the truck frame. Bolted in place, it should act as a lower/partial cross-member.



The upper half of the original cross member was cut away and then bolted back into it's original position - between the two rear leaf spring hangers. It'll clear the tank and help keep the frame rails parallel.