Disc break conversion kits?

OH, and read the Mopar Action link listed above, first. It's a great source of base knowledge to start out.

Yes, except the FMJ spindle warning.

Find 73+ A body BBJ upper A Arms and a set of discs from a 73-76 A or an FMJ body car. They all work well if you are swapping to big bolt pattern wheels.

Small bolt pattern, factory Kelsey-hayes or scarebird work.