I am getting a 96' 1500 reg cab 2WD with a 318. How hard is it to turn a 2WD to a 4WD? Will the front axle swap in with little to no trouble? Will I have to get a tranny and transfer case from a 4WD truck to swap in, or can I just bolt in a transfer case? I would buy a 4wd but the price of this truck, free, I couldnt pass it up. Any help is greatly appreciated.