The bad thing is, if I bought an old bread truck like that I would probably just start driving the thing "Teen Werewolf" style.on the 4bt search, don't restrict yourself to just the engine search. one of my best friends got a great deal on an old running bread truck with the 4bt/allison trans, and plans on using the engine for his ramcharger project, and plans on selling off the allson, and scrapping the body to re-coup some of the investment....
food for thought...