i dont think it is a problem. as long as you keep after them. that is the main reasion we have all the computers on cars now people are lazy and they dont keep after their cars. so the computer does it for them.

i am not sure but if the holes in the backing plates from a later mdel truck match up then it would be no problem. and i think you mite be in luck the way things interchange with chevy.
now if you got real lucky and found a heavy duty set up front and rear. that would give you 3" wide liners and you would not have to worry about disc brakes.