have a 03 2500 almost a year old with 31600 miles. much to my surprise it would'nt pass the yearly PA. state inspection......my local dealer checked it out. sure enough upper AND lower ball joints bad ,left AND right sides. all four replaced under warranty no questions asked, about a $600 job. anyone else have any problem with theirs??? even so, better check them out before your truck gets to 36000... only problem i've had so far----i REALLY love the truck...