I am looking to buy 6 cyl. 4x4. Want an 03 or 04, I am in South Florida so noone really has any use for 4 wheel drive down here (with stock tires anyway) except if you have a big boat that you can't get up a ramp. Is there anything I should check out when buying a 4x4 to make sure the system works?? Also I have never bought a Toyota, let alone a Tacoma so I am looking for anything in particular I should pay close attention to. I am moving to Tennesse in the next year so will be towing a, atv or 2 in the mountains.