And for weird: the 1973-89 B-F-M-J-R steering knuckles will physically bolt up to the 1962-72 ball joints, both top and bottom, and said taller 1973+ knuckles may actually help camber adjustment, etc. since they're maybe 3/8" taller than the 1973-76 A-E disc brake units.This is the definitive article on brake upgrades using junkyard parts:
DISC-O-TECH: Stop on a dime from Mopar Action and Rick Ehrenberg (at https://www.allpar.com/history/mopar/brakes/disc-main.html )