Ya, 11" inchers are bigger, and 10" inchers are smaller, for the difference in diameters.
What size you looking for anyway?
I have 11's, right here, in the for sale section, if that's what your after.
Jim V.
id be interested,,how much for the pair,, that's the arm that hooks to your brake shoe for the ebrake right? do you have a pic that you can text me ,,506 469 1991 thanks