65 Dart GT drum brake issues.

Ok, the problem is the bolt holes on the brake cylinders on the car are 1-1/4" o.c. the bolt holes on everything that I find to buy that is supposed to fit is 1-5/16"o.c. The spindle nut is I believe an 11/16" x 24 thread & what they sell that is supposed to fit is 3/4" x 16 thread.