10" or 11" brakes?

@72bluNblu I have all the parts for the 11x2 rear drums. I checked the wheel cylinders that spec for those drums, they are 15/16". Your post above says to run 7/8" cylinders, but that was for the 11x2.5" brakes. I am going to run a prop valve when I plumb everything in. Are these 15/16" cylinders workable, or should I look for the smaller ones?

I think you’ll be ok with the 15/16”. The only times I know of that guys liked the 7/8” better they were running 11x2.5’s with the smaller 10.95” front disks. Going up to 11.75” disks eliminates the need to use the smaller wheel cylinders. I would guess that the smaller 11x2’s are a big enough change not to need them too. But a lot of that will depend on your car, it’s weight balance, tires sizes etc. An adjustable prop valve on the rear line would solve that. Or if it locks the rear up prematurely you could always go to the 7/8” wheel cylinders later.