Had my dealer do the rear brake squeal fix per the bullentin that is out on my '08 ultra. It helped a little but did not completely eliminate the squeal. Guess my next fix is to change pads.

 

Had mine done too. Helped a whole lot. I get a very slight squeal. If it doesn't get worse, I'll be ok with it. Not sure if pads are the answer either, from what I have read.