I stopped by SSBC today to look for a kit for my buddies 71 Valiant. They have aftermarket masters and they make the kelsey hayes stuff in house. They didn’t have anything for me, as I’m going BBJ. The sales man did mention something about the disc master being a slightly bigger dia than the stock drum one. Iirc 1 1/32 v. 7/8. He said I would have to get the bigger master for the kh disc set-up.
Mopar Universal Master Cylinder -Power and non Power - 1-1/32" Bore , 4 bolt mounting flange
