School me on a GM... Can you simply pull the calipers and squeeze them back, or do you have to loosen the bleeder when you squeeze them? I have a brake that is squealing and I'm going to pull the calipers, add some of the noise dampening goop, and reinstall. Not new to doing brake work, just know that some vehicles don't like to have the fluid pushed back through the system. In this case, I'm not pushing them very much since I'm reinstalling the same pads; but for future reference?? While I'm in there, I'm going to pull the ABS sensor from the unit bearing and add some grease...just thought I would bring that up for discussion. This is nothing new, the Dodge crowd did it quite a bit, and I know someone wrote a thread on it for the GMs not long ago.