front disk brake conversion kit

Rick Ehrenberg's Disc-O-Tech. Still the gold standard 35 years later. Master Power has spindles and caliper brackets, everything else is part store stuff.

DISC-O-TECH: Stop on a dime

If you insist on keeping the small-bolt-pattern wheels, you will need something less effective...Scarebird offers a kit for that.

Just ignore everything he says about the FMJ spindles.

And the small bolt pattern thing isn’t true either, DoctorDiff will sell you the 73+ disk kit with a 5x4” pattern now. PirateJack will too, although their customer service and parts quality isn’t as good.