"From your description, it sounds like you are missing an adapter that should have come with the cylinder."
INTERNATIONAL 1100 PICKUP BRAKES
I’m a longtime reader looking to restore the front and rear brakes on my 1968 International 1100 two-wheel-drive truck. I’m specifically looking for front and rear brake drums, along with wheel studs for the front hubs, which I am hoping I can reuse. Do these drums fit other International trucks and will I have to source good used drums, or are they still available in the aftermarket? Would new front drums come with hubs and
