i just got finished putting a 59-235 in my 51 dump all by myself. its real easy with lots more power than i had before with the splash engine. i was asked along the way why i wasnt putting something bigger in and i said simplicity. all the changes were done on the engine not the truck ie.(motor mount location, steering, suspension, radiator.) and it has all the power im going to need. it was right out and right back in.