E body Kelsey Hayes on an A body?

I got both your e mails to my regular e mail address, with the pictures.

One of your set up's is a 65, 66, 67, FORD Mustang, Kelsey Hayes, 4 piston disc brake set up, and the other one is a 65-72 MOPAR A Body, Kelsey Hayes, disc brake set up.
From those pictures of the caliper with the brake pad retainer plate, specifically a 65-66 caliper.
Jim V.