Chevrolet Silverado transmission problems

TRUCK HAS BEEN AT DEALER FOR REPAIR TOTAL OF 35 DAYS BEFORE 1ST ANNIV. OF OWNERSHIP WITH OVER 20 SEPARATE PROBLEMS, 5 OF WHICH ARE UNRESOLVED TO THIS DATE. VEHICLE IS AT DEALER NOW FOR FINAL REPAIR BEFORE TN LEMON LAW CAN BE IMPLEMENTED. WORST AND CURRENT PROBLEMS ARE FRONT END ALIGNMENT (PULLS TO RIGHT), FRONT BRAKE SQUEALING (PADS REPLACED TWICE, ROTORS TURNED ONCE), REAR END VIBRATION AT ANY SPEED AND CLANKING SOUND OVER BUMPS(ALL 4 TIRES, BOTH REAR LEAF SPRING STACKS, ALL 4 SHOCKS REPLACED. ONE SHOCK HAD BROKEN SHAFT) , ENGINE BACKFIRES & KNOCKS AT STARTUP (DEALER REPROGRAMMED COMP. W/NO RESULTS EXCEPT TO IMPROVE POWER, BUT ACCEL. PEDAL STICKS NOW!), TRANS. SLIPS FROM DEAD STOP FOR FEW SECONDS ABOUT ONCE PER WEEK, 4WD TRANSFER CASE SLIPPED IN LOW IN DEEP SNOW (REPLACED FLUID AND DID REPROGRAM. RESULTS??), EXT. CAB POP OUT WINDOWS REPLACED DUE TO POOR FIT (ONE EXPLODED UPON REMOVAL & DEALER HAD TO REPAINT SIDE OF TRUCK. NEW ONES ARE NO BETTER THAN ORIGINALS!), REAR SEAT MISSING RUBBER MOUNTS(DEALER REPLACED, BUT NOW SEAT MAKES POPPING NOISE DUE TO REAR CAB WALL FLEXING!), DRIVE SHAFT MAKES LOUD CLANKING SOUND WHEN SHIFTING FROM PARK(DEALER SAYS THIS NORMAL!). PROBLEMS REPAIRED: REAR BRAKE LINE LOOSE & IN HARMS WAY(MISSING MOUNT REPLACED), STEERING BOX LOOSE AND STEERING COLUMN RATTLED AND LOOSE AROUND ANY TURNS(BOX TIGHTENED AND COLUMN SHAFT REPLACED), DRIVERS SIDE WINDOW SWITCH STICKING IN DOWN POSIT.(SWITCH REPLACED), ALL DOOR WEATHERSTRIPS AND DRIP RAIL MOLDING LOOSE (REPLACED ALL), REAR LICENSE PLATE LIGHT BROKEN AND REPLACED, DOOR LOCK LEVERS FELL OUT OF BOTH DOORS(REPLACED BOTH). LEMON, LEMON,LEMON!!!!!!!!!!*AK( DOT NUMBER: )

WHEN PLACED IN 4WD MODE THE TRUCK MAKES A GROANING/MOANING NOISE AT APPROX 9 MPH ON. IF THE STEERING WHEEL IS TURNED THE TRUCK JERKS AND SHUDDERS. THIS HAPPENS ON DRY PAVEMENT AND SHEET ICE, WE DRIVE ON BOTH A LOT UP HERE IN ALASKA. I HAVE A LOT OF PRIOR EXPERIENCE WITH 4X4 VEHICLES AND THIS IS ABNORMAL TO THE POINT OF BEING DANGEROUS. I HAVE TAKEN IT IN TO THE DEALER AND THEY HAVE CONTACTED GMC. THE SERVICE MGR TOLD ME THAT HE HAD TALKED WITH A "BOB" AT "TAN" AND GOT NO ASSISTANCE, BUT WAS TOLD THAT THIS WAS NORMAL FOR ALL 4X4 TRUCKS. THE DEALER AGREES WITH ME THAT THIS IS NOT NORMAL AND THEY TOLD ME THAT MINE IS THE THIRD TRUCK IN THE LAST FEW WEEKS TO HAVE THIS PROBLEM, ALL WITH NO HELP FROM GMC. THE DEALERS SOLUTION IS TO NOT USE 4WD UNLESS ABSOLUTELY VITAL. BUT 4WD IS ABSOLUTELY VITAL DRIVING ON THE ROADS HERE IN ALASKA MOST ALL WINTER, AND PART OF SPRING. THE ERRATIC CONTROL FEEL IS VERY BOTHERSOME AND I BELIEVE A SERIOUS SAFETY ISSUE! *AK