WTB Backing Plate '69 GTX Passenger Front

[Jax_1975_Dart]

Looking to buy 1 backing plate for 11" drums • Passenger front. The car I'm working on is a '69 GTX that the previous owner switched to a square hole for the wheel cylinder. Long story short, none of the parts that "should fit" work with the incorrect backing plate.. so, we're replacing everything back to within OEM specifications.

Shipping would be to North Florida area.

Thanks for looking!