Yeah, sorry.
POWER STOP AR8309XPR
$153.78 for the pair
I looked up the parts under 1980 Dodge St. Regis. The drilled rotors didn't show up when I searched under Coronet. All bearings and seals were for the St. Regis. Work perfect.
There is a guy selling the pin type caliper brackets brand new on eBay, but they are pricey. $220 a pair if I remember.