Bendix/ kelsey hayes 2 inch Back plates.

Has any one converted from the 1-3/4 to the 2” back plate on a ford 9 inch. If so how difficult was it.

Thanks scott

The 2" rear backing plates are stock on the 1969-70 Cougars.
It is a bolt-on replacement. The drums fit 2" or 2.5" backing plates.