As long as you do not open the bleed screws or losen the brake lines there is no need to bleed them. the pins I was reffering to do not contact the rotor. the only thing that should contact the rotor is the pads. the back side of the pads that does not contact the rotor is where the pad lube goes. You can buy this in little packets at any parts store. The Crossfire uses a floating caliper which means there is only a piston pusing on the inside of the rotor. when it pushes against the rotor it pulls the other side pad onto the rotor. There is alway a way for the caliper to slide inorder to achieve this. If I still had my stock calipers I could look and tell you exactly how they slide. Most floating calipers have large thick metal pins that the this slide action happens on. It is a good idea to make sure they are sliding freely or you may not be completely releasing the pad when you let your foot off the brake. a little too much dragging of the pad could produce the sqeak. I still suspect the bearings. When I had my car aligned we found too much play in my passenger side front wheel. We took off the dust cover and becuase everything was still in good shape we just tightened the nut a little that tightens the bearings. Never had an issue since.