are you talking about removing the hub from the axle assembly? or are you talking about specifically remove the rotor from the hub? either way, its pretty much standard, just like a D44 or even similar to Isuzu.

first remove the caliper. next the hublocks (or drive flanges). next unscrew the outer axle nut, the lockwasher, then the inner axle nut. remove the outer wheel bearing. hub and rotor should now slide off. The rotor is held to the hub by the wheel lugs/studs. you'll need to press out lugs and then the two should seperate (may be a lot of rust that makes this not happen easy). Thats basically the quick and dirty of it. which part are you having trouble with?

-Rob