smartest thing is retro fit his 2 wd, try crazi mad scientist ideas, beat it up, use feed back to incorporate into new purpose built4wd, then go beat alll those youngster wippersnappers
I disagree. He should (if not already) build an all new truck. If the 4wd doesn't work out then he has the 2wd truck to fall back on. Plus another weapon in his arsenal.
Then there's the thought of him converting his prerunner into 4wd first and working out any issues on that first.