Backing plates and drums needed for changing over to BBP axles

Ok thanks. I’m building a Dana 60 from a truck housing. I need 10 or 11” backing plates with the E brake bars.
Once I get what I already have coming (10" brakes) and they work out, I may have what you want...a "nice" complete set of rear 11" brakes off of the 8 3/4 I'm installing. We have had a few issues on this installation, we are going from 11" to 10" on a shortened housing. I'll let you know. (check back with me next week)
Norm