Hi quick question, I am looking for a chevy swb or lwb over here in new york. The problem is I cant find any decent 4wheel drives for a decent price, all the 4x4's for sale are usually rust buckets and need major work to the engine because they use them as snow plows. The only decent trucks are usually 2 wheel drive. Now to my question how difficult is it to convert a 2wheel drive truck to 4 wheel drive. Is it worth it can someone tell me what is involved in doing this? Thanks for your help.