10" X 2.5" Backing plates for 73 Challenger 8 3/4 Rear end

10" X 2.5" Backing plates for 73 Challenger 8 3/4 Rear end - Where to buy?

hemi71x said
You just looking for one?
What side?
Left or right.
Side specific, where the parking brake cable goes through.

I'm looking for the pair.
Thanks