The only real issue was locating the proper adhesive to ensure that the new pads would not fall out. The small insert paper slip in the package noted that a RTV adhesive should be used. After much searching at the home improvement super store, I learned it would be found at an auto supply store. It is black, and is for high temp use. It is available in a small tube for around $2.00. The RTV is usually used to make gaskets for heat/oil exposure in auto repair. I did have trouble removing a broken stub from a pad that had broken off in the hole. I used an awl to get what I could and push the rest into the hole deeper, then insert a new pad with along with the adhesive.