Right Stuff disc brake kit

Bearing noise? Are you using green bearings? Sounds kind of like your clearance is ok when cold, but as stuff gets hot you don’t have enough, like a bearing with too tight of a tolerance.
That's my working theory also. Something is already a little close and then gets tighter as the pads or rotors or something else heats up. I have the Green bearings. New axels and narrowed housing built by Moser. Thanks.