Tried at Pirate, but apparently not good enough over there. Anyways, I'm gonna be buying a 90 crew cab dually, TBI 454, 400/205, 60 front 70 rear. I want to take the trans out and swap in a 465. I know that there aren't any electrical stuff going to the trans, just the kickdown cable. What all do I have to do to do this swap?? Do I need to get a computer for a truck that has a stick in it alreay?? Being a 90, the VSS will be on the speedo, so correcting for gears/tires would be just a matter of changing the plastic gears in the t-case??? Last one, I want to make this a short box, I know that you can move the box mounts forward, rather than cutting the frame in the middle. Is this the easiest/best way?? Pics of a frame would help, don't have the truck yet. BTW, the axles are for sale.