New to the dually scene!!!

When i first bagged the truck it didnt lay out at all....i didnt wanna lose the a/c and heater...when i bodied it i still didnt Z it any....just a 4 inch stock floor....truck lays frame flat with no Z

The lower half of the framerail (the part the lays) is still the factory section of the lower framerail right ? So just redoing your front bag mounts gave you the extra drop to lay frame ? I really dont wanna pull the cab off if i dont have to. Im thinkin i may just z the front a few inches and then cut the lower half of the frame off and support it with box tubing so itll lay rocker. I can do all that without removing the cab. Just trying to gather info on different methods. Im a newb to square bodies

Hello i recently acquired a set of 24.5 Alcoa wheels i need to know where and how much to mill them down to fit a normal truck tire