10 1 3/4 brake backing plates (8 3/4 sbp)

Hey all, in the middle of swapping out the old 7.25'' rear for an 8 3/4'' in my '64 Valiant. Looking for a pair of clean and useable 10 x 1 3/4'' brake backing plates for the small bolt pattern. Bueller...Bueller...anyone? Drums, shoes, cylinders and hardware I'm able to get through Rock Auto. Let me know what you have. Thanks.