Hi fellas , ive searched and searched , beat the shelves at 4 local parts houses and i give. Ive got to ask for help. Model A Ford coupe project , came with a ford 9" all mounted up with bare backing plates mounted. Plates had a ford number which i cannot locate anywhere , one fella had some listed as 68 gt350 on ebay but i think he is wrong because those wheel cylinders are too big aswell. Housing pattern is torino / big ford new style . axle offset is 2.5 ... My problem is every single 9" ford wheel cylinder i have tried , the boss with the bleeder screw and line port is too big to fit through the backing plate. When i throw the calipers on every 9inch wheel cylinder i can find , it measures 1.48 ..... The hole in my backing plate measures 1 1/4" to maybe 1 5/16" or 1.3125 . Ive checked ford mustang , truck , torino , cougar , 60's through 70's and when i got to the 80 ltd then it got way goofy. Backing plate is a bendix , stamped ford number 3202351 . 10" brakes.