Can you find an image of a truck close to what she drove? We can be a very technical bunch, and there are many parts suppliers out there. From the sound of it, you should use the Ford racehauler kit with a hendrickson rear suspension. I would suggest going to the trading post in the truck section and trying to get your rears and walking beams. I dont know your skill level, but a dump box can be pretty easily built with some styrene sheet and square/rectangle styren tube. This can be purchased online, or if your lucky at a local hobby shop.Did the truck have spoke wheels, alum wheels, steel buds, dual tanks, dual stacks, how many yards was the box, was it a set back axle or axle forward?