I have a 1965 Coronet that I'm putting 2.5"x11" rear drums on. It's a manual brake car and this hasn't come up before. What size bore for the wheel cylinder should I use. They offer a 15/16" and a 1/125" bore for the wheel cylinder. I know with the master I'd use a 15/16" bore but now I'm confused a bit on which bore to get for the rear wheel cylinders. I'm going with discs up front.

Thanks

1972 Cuda 340 4 speed, 2001 Ram CTD 4x4 6 speed, 1970 Duster 408 4 speed, 1996 Ram 5.9 2x4 auto, 1965 Coronet 500