Been doing brakes on my cars since I'm 19 now I'm 45. So I have a Mazda 6 changed the pads and rotors on the front twice this is the third. Rear only twice. This past Sunday I swapped out for durlast gold rotors and ceramic pads. Did all I usually do released the pistons came out no issue collapsed them no issue. Sylglided my slides and all points. I did use crc grease for the first time on the shim outside of pads other than sykglide I always liked. Bedded the pads and rotors as I have always done. I'm getting shaking when braking at highway speed above 50mph. Under that brakes brake amazing! Anyone have an idea?
