Steeldraulic Brakes

Have had this same kind of problem on a couple of our MB diesels with disc brakes. The solution there is to put some special grease on the edges of the metal pad backing plates where they ride and move on the caliper. The comparable points on the one shoe Auburn brakes would be the metal shoe edge that touches the backing plate. Was skeptical about this grease on the discs, but it works quite well; and most of the noise was occurring at or near the car's stop point.

I had the shoes re-lined and went thru the brakes on my 8-100A last year. They were working ok, but not great at Auburn last year. In an effort to get them up to snuff, I went through the adjustment procedure again this spring by the book (1931 shop manual, factory service bulletins, and period multi-make shop maunals). I now have a decent pedal, and a car that stops straight, but also gained a right front brake that howls just as she is coming to a stop. Needless to say, this is annoying.

Any thoughts?