10" backing plates for 8 3/4" axle

After some trial fitting I found out that I need the 10" X 2.5" backing plates for the 8 3/4" rear axle. Most likely off of a B body car. I need both sides.
Shipping to Omaha
Thanks

Did you find your 10 inch B Plates? I'm in Spirit Lake, Iowa, and we will be going to Council Bluffs within the next month. PM me, as I can send a photo of what I have. Best. Old Dart 66