with enough determination and know how, anything is possible. not to be a prick, but if you have to ask, its most likely beyond your capabilities and would probably be best to do as "Boring" suggested, trade it in.I have a 2 wheel drive 2001 GMC Jimmy SLS, I want to change it to a 4 wheel drive. Will it be hard or would it be more worth it to just trade it in for a 4x4?
unless they were able to find a donor for cheap. say someone had one listed on craigslist that had been in an accident or something and were just trying to basically sell it for parts, you could probably pick up a salvage titled Jimmy/Blazer for a couple hundred dollars. of course, like you hinted at, that would be the easy part. i picked up my 96 for $850 and the drivetrain is completely free from problems. body work is another story though.Trade it in. Way way to many mods to even mention. Trans, exhaust, front transfer case, etc.. You would probably end up spending over $7,000