Ya, they are stuck/sticking. I pulled them off and put air to them and on one of the calipers, only one side moves and the others that do move wont hardly retract. To save some money, i thought about rebuilding them myself rather than buying calipers.. Also,I have MANUAL Kelsey hayes brakes on my 1972 dart, I see most people like the 15/16 bore MC for manual discs..well, looking at my local oreilly, all the master cylinders for manual brakes are 1.032 inch..in order to get a 1 inch bore MC i have to get one for POWER disc/drum brakes..is that ok to do or do i have to have one that is strictly for manual brakes? I would like to pick one up tomorrow..