Originally Posted by Newenglandbbqer
This is just an idea I had but what would be the challenges of replacing the bed of say a ranger or 2wd f150 or something with a smoker?
A lot of challenges and a lot could go wrong. Like already mentioned, the gas tank would be a major hazard if something were to go wrong. And personally, I don't think moving it into the cab is the best idea either. You'd be in quite a spot if you were out driving and a hose were to burst or the cab were to fill with gas fumes. It could go south really quick. Plus, you would need to rewire everything to the new gas tank location. You would also have to figure out a way to mount something like a 200 gallon propane tank to the rear axle and suspension requiring a ton of welding and fabrication. Then don't forget the street legal requirements like rewiring the brake, tail, and reverse lights.
Not to say it can't be done. It just won't be as easy as building one on to a trailer.