You need big bolt pattern backing plates off of any 10' big bolt mopar. This is a common issue. You will also need the parking brake lever and strut. And the hold down pins and lining for big bolt.
I have tons of parts but I will not ship anymore for anyone. Cash and carry. Maybe another member will come for them and ship them to you. $50 for usable cleaned plates ,levers and struts. per side. I have small and big bolt front and rear
View attachment 1715595590
View attachment 1715595591
