I have a heck of a time with my adjusters gm. I think something is amiss. Everything is new except the backing plates. I am not able to turn a cam top or bottom, and stop the drum. I can get close and get it to just touch and rub, but I cant get a real good pressure on the pad with the eccentric to stop the drum completely. In some cases I can just barely touch the shoes to the drum. I am beginning to wonder if I have a full set of undersized shoes and/or drums.