in a 96 ford f-150 302 engine 4x4 automatic ! with manual hubs how do you operate the 4 wheel drive ? it has the button on the dash that says 4 wheel drive and low lock ! do i just turn the hubs to lock and then push the button ? it has those automatic hubs and i am going to put warn manual hubs in the wheels because i have a hub messed up ! i have the 3 screw hubs so i need a conversion kit ! does the conversion kit go in the hubs ? i was told i don,t have to bother doing anything to the transfer case that all the work is at the wheels, is that true ? this is my first 4 wheel drive so i am just learning as i go by ! thanks guys !