What am I doing wrong! Just trying to reassemble brake calipers and I cant get the dust seals from piston to caliper to push down onto the caliper. Anybody know of any tricks here. with the fairly sharp metal of the clip band, I dont want to split my nice new rubber by pushing too hard. In frustration i even pulled one off and put the old band in to the rubber but I can't even get that on. Its like I need to make up some sort of washer so I can apply even pressure on it? I have tried putting one side on then working forward and trying to get it lined up and push all at once but to no avail.