i have a question that needs to be answered ! i have a 96 ford f-150 4x4 automatic transmission and the automatic hubs are messed up ! i have the 3 screw hubs with the push button 4 wheel drive on the dash ! i am going to change the automatic hubs to warn manual hubs and i understand i need a conversion kit so where does the conversion kit go at ? i was told i don,t need to do anything to the transfer case that all the work is at the wheels ! are the manual hubs and conversion kit hard to change ? this is the first 4 wheel drive i owned so i am new at this ! i appreciate anything you can tell me ! i guess i could stay with the automatic hubs but i heard they sometimes works and sometimes don,t so i am going with the manual hubs ! thanks guy for your time !