Originally Posted by JohnnyJ
if you don't care about a mechanical parking brake in the rear, then you can't get much cheaper than ford rotors and either chevy s-10 or 1/2-ton calipers and some quick brackets.
This is how we do it. Most of the "e-brake" calipers are a pita. If you need a parking brake either run a disc/drum setup like most new trucks, or run a driveline brake.
Adam, if your d30 rotors fit over your axle flange, and they are deep enough, there should be no reason you can't weld a bracket on the axle for a caliper.