I can't believe how many of you guys are saying that it would be unsafe to modify the suspension. How can you make a blanket statement like that?
Fletcher-
It's definitely possible to lift your truck AND it can be done safely in any number of ways. What are you trying to get out of it?
If your goal is to have a truck that 'looks mean', then I'd probably follow the advice that's already been given and install a body lift. Problem solved.
If you're more interested in performance, custom-made leafsprings might be the best option. I would start by contacting
Deaver. They build custom springs for all types of off-road trucks, and I would bet they've already built springs for a Deuce at one time or another.
You could also redesign the suspension completely, but that's probably a pointless conversation. If you're really interested in more custom options, just go search pirate4x4. Word of warning: this would be getting WAY beyond lift kits. The suspension options beyond replacement leafsprings would basically involve re-engineering the suspension to suit your needs and a LOT of custom fabrication.