2007 GMC SIERRA CLASSIC Power Train Problems

WHY IS GM RECALL 14121 LIMITED TO NEW VEHICLES? IT HAS BEEN A RECURRENT, COMMON PROBLEM SINCE LONG BEFORE 2000. LONG BEFORE I BOUGHT MY 2007 GMC SIERRA CLASSIC 2500HD WHICH IS ON THE THIRD REPAIR. I JUST REPLACED A TRANSMISSION COOLER LINE IN MY DRIVEWAY. TODAY. WHICH IS STEADILY ERODING BY WAY OF CONTINUOUS TRANSMISSION COOLER LEAKS. IT CONTINUOUSLY COATS THE UNDERSIDE OF VEHICLE, REDUCING LIFE OF BELTS AND HOSES. GM DEALERS FEEL ITS NOT COVERED BY 5/100K POWERTRAIN WARRANTY, OR 36K BUMPER-BUMPER WARRANTY BECAUSE IT'S A LONG TIME GM PROBLEM AS WELL AS WARRANTIES IN GENERAL. *TR

THE TRUCK AFTER 40 MILES STARTED SCREECHING FROM THE FRONT WHEN GOING AROUND CORNERS,AND WAS REPORTED TO THE DEALER SAM SWOPE, I WAS INFORMED THAT IT WAS NORMAL, ON THE WAY TO TOWN THE TRUCK STALLED AND WAS TOWED FOR REPAIR TURNS OUT THE COIL PLUG SHORTED OUT WIRES WERE REPLACED, NEXT DAY THE TRUCK STALLED AGAIN TOWED AGAIN TURNS OUT THAT BOOTH CATALYTIC CONVERTERS WERE PLUGGED,BOOTH REPLACED. ENTERING THE FREEWAY WHEN ACCELERATED THE TRUCK DID NOT RESPOND, I WAS INFORMED BY THE DEALER THAT NOTHING WRONG WITH THE TRANNY, NOW I HAVE A CLUNKING NOISE FROM THE REAR OF THE TRUCK THEY CLAIM NOT TO BE ABLE TO DUPLICATE THE PROBLEM, TIRES WORN OUT AT 27,000 MILES TURNS OUT ALIGNMENT PROBLEM BUT NO CAUSE FOR THE SQUEALING TIRES SENSE FIRST REPORTED THE FIRST DAY OF OWNER SHIP. SAME PROBLEM ALL THE TIME STEERING WHEEL NEVER BEEN ALIGNED ANTI-LOCK BRAKES...