I just bought a 55 long but I really want a short. Anybody done it? I know different states have lots of supercool safety rules that keep people from licensing frankentrucks. I need to know some frame dimensions from a 55-57 shortbed and longbed. And diagrams would be awesome too. Remember, too much information is impossible. I can use any specs you've got. The Chevy service manual has crap for actual measurements. They just tell you where to measure for a relative squareness test. I am new here. Literally this is my first post. Be helpful please. Thanks