Not to take this too far into the drive train section, but swapping in a 6 spd did cross my mind. Like the NV5600...I think that is the one behind the dodge cummings....wonder how easy that would bolt in behind a 292? This truck is a hauler and wasn't really meant for speed, but at least that way I do have low and high gears without running that thing too hard trying to do the speed limit!!!
