I need help converting my truck over to a 4x4. At the time of purchase I saw no reason for it. But now... I want it more than I need it, but I still have had a few times where I needed it and didnt have it. Anyway would I be better off finding a wrecked Dodge and taking the parts off or is there an aftermarket kit that would serve me a little bit better? What can I expect to pay in both cases, both factory or aftermarket set up. Thanks!