[Robert1970C20rstbukt]

Well hopefully someone is going to put it to use and not scrap it, real cool rig thanks for uploading the pictures of it. From what I could find, that's a 7500 series truck with air brakes and was ordered with a V6 gas engine, couldn't find out what year. It's gotta be a '70 or newer like Bill says. All the books I have are from 1969 and earlier. Depending on the year it could have had a 351, 379, 401, 432, or a 478 engine.