Aside from dust and some squeaks, I had complete pad failure on one of the front pads with less than 40,000 miles on them. This is my wife's daily trip, who only tows our boat a few times a year, weighs only about 4,000 pounds and has trailer brakes. Stopping power was improved when the pads were new, but I noticed a significant decrease with age. UPDATE: Performance Friction took care of me on the failing pad. The pad change was about 75,000 miles and only one of the four front pads is worn so