I HAD TO HAVE THE DRIVESHAFT IN MY 1999 CHEVY BLAZER REPLACED IN MARCH 2011. EXACTLY ONE WEEK LATER MY SON WAS DRIVING TO SCHOOL CAYUGA-ONONDAGA BOCES IN AURBAN WHEN THE DRIVE SHAFT FELL OUT CAUSING THE BLAZER ENTIRE REAR-END TO SEIZE UP THROWING THE VEHICLE ALMOST MAKING MY SON GO DOWN OVER THE BRIDGE. THE SCHOOL CAME AND TOWED HIM BACK AND LOOKED AT IT' THE BOLT THAT HOLDS THE DRIVESHAFT IN WAS NOT THERE, AS IF THEY FORGOT TO TIGHTEN IT OR FORGET TO PUT IT ON ALL TOGETHER. THERE IS NO EVIDENCE THAT THE BOLT WAS PULLED OFF OR BROKEN, YOU CAN CLEARLY SEE BY THE TREADS. I HAD THE TRAINED AUTO MECHANICS AT THE SCHOOL CALL OVER TO PULLEN'S AND THEY WERE RUDE, SAID THEY DID THEIR JOB AND THERE WAS NOTHING TO DO TO HELP US.. VERY RUDE' ALSO, THE DRIVESHAFT DIDN'T HAVE ANY GREASE FITTINGS SO IT WOULDN'T HAVE LASTED 6 MONTHS TOP. THIS GARAGE DID A BAD JOB AND NEED TO LEARN HOW TO DO THEIR JOB RIGHT' I DIDN'T PAY OVER $500 TO HAVE MY VEHICLE FIXED FOR ONE WEEK. *TR