full time vs part time hubs. I'm building a front dana 44 for a jeep cherokee. I have a 79 ford housing, with chevy outers( diskbrakes, flat top knuckles). I'm trying to get manual ford hubs. my local autozone has hubs of the one piece design (rotor is part of the hub). I'm thinking this is for a full time 4wheel drive set up. are manual hubs a two piece design? where the rotor and hub are seperate? Can i use a one piece design and then use a hub conversion kit to get part time 4 wheel drive? any help would be appreciated. thanks