Ok I failed the state inspection today. The parking brake wouldnt hold the truck. one guy at the place said that the cable needs to be tightened, then another guy chimed in and said that 90% of gm trucks suburbans and tahoes(yukons etc) all fail due to that. He then said The parking brake pads in the rear disentigrate and you have to buy new ones from gm as they are the only ones who make them. I had never heard of this and if that was true wouldnt they have to issue a recall? Any body know? Suggestions?