back in march i took the 66 into a shop to have the rotors turned an new pads. well the pads that were installed were brake best select a ceramic pad P/N CS-52. i just got done doing the tires an wheels for a show this saturday. i've got maybe 500 miles on these pads there was no dust that i cleaned from the wheels. also i'm thinking these are 72 chevelle disks, at lest thats what the rotor seals were that matched. the bummer of the job the pads are made in mexico. an i think o' riely's for the pads.