I was heading down the highway this past saturday at about noon when i got the dreaded battery not charging light on the dic...no breaking assist...no power steering..no heat and it was 8 deegrees out...tow truck took an hour to get there....i was heading to the rents house to put on a new alternator...which i thought was the pulley that was on its way out....turned out to be an idler pulley...and guess what...pep boys...napa...advanced auto parts...auto zone...none of them carry that gm part...most of them could not even find reference to it in the computer...all of them could sell me the tentioner pulley...all of them had that in stock...but not one had an idler pulley...whats up with that??? napa had the new belt...but that did me no good...of the 6 chevy dealers within 30 miles of my house...one was open on saturday but closed before i could get to them...none are open on sunday....so my 40k+ truck has been sitting since saturday am because national chain part store can not carry a 15 dollar pulley??? wtf is up with that??? is it a gm thing??? anyone who knows pls let me know....sorry for the rant but i find it to be messed up!!!