WHEN WE TOOK DELIVERY OF VEHICLE, WE NOTICED IT WAS SITTING AT AN ANGLE TO THE GROUND (IT SAGGED DOWN 1 1/2 TO 2 INCHES ON THE LEFT REAR) IT LOOKED AS THOUGH THE BODY WAS TWISTED. WE WERE ASSURED THAT ANY PROBLEM WOULD BE TAKEN CARE OF. WE TOOK BACK THE VEHICLE TO BE REPAIRED SEVERAL TIMES, 4 TIMES WE GOT A RENTAL VEHICLE TO USE. THE FIRST TIME WE LEFT THE VEHICLE, THEY CHANGED THE GAS TANK BECAUSE IT HAD A 9 GAL. DENT IN IT ALTHOUGH THE SKID PLATE HAD NO DAMAGE WHATSOEVER; THE BUMPER WAS MISALIGNED; THE TAILLAMP WAS PROTRUDING AS WELL AS THE REAR-LOWER PORTION OF THE PASSENGER'S REAR WINDOW(TOO MUCH GLUE) AND THE TIRES WERE CUPPING. THEY HAVE HAD THE TRUCK TO ALIGNED AND BALANCE TIRES, HOWEVER WE HAD A GOODYEAR DEALER REBALANCE THOSE SAME TIRES TO GET THE VIBRATION OUT TO NO AVAIL. COURTESY SWAPPED DIFFERENT RIMS AND TIRES FROM ANOTHER TAHOE. NOW IT VIBRATES EVEN MORE! WE WERE TOLD TO BE @ COURTESY ON 6/14/99, THAT THEY WOULD HAVE A MACHINE THAT WOULD PINPOINT THE SOURCE OF THE VIBRATION. WHEN WE GOT THERE THEY DIDN'T HAVE THE MACHINE AND INSTEAD SENT A MECHANIC ON A ROADTEST WITH US. WE WERE POINTING OUT THE VIBRATION TO HIM. HE THEN TOOK US OUT IN ANOTHER '99 TAHOE, THIS TIME THE RIDE WAS SMOOTH, HOWEVER THE MECHANIC SAID THAT IT HAD A LOW SPEED VIBRATION(WHICH IT DID NOT). WE WERE THEN TOLD THAT THEY COULD WORK SOME FIGURES ON ANOTHER VEHICLE. WE CALLED THE NEXT DAY AND WE WERE TOLD THAT IF WE GAVE THEM $2,500.00 MORE DOLLARS, WE COULD GET THE IDENTICAL VEHICLE ON THEIR LOT. FIRST OF ALL, WE SPENT MORE THAN THE STICKER PRICE AND HAD THE ADD-ONS TAKEN OFF WITH NO CREDIT GIVEN TO US FOR THAT. SECOND OF ALL WE WERE TOLD THIS WAS A NEW VEHICLE W/ ONLY A FEW MILES ON IT. AFTER WE GOT IN THE TRUCK TO GO HOME(AFTER IT WAS PAID FOR), WE NOTICE THAT THE VEHICLE HAD 732 MILES ON IT!!! THEY SOLD A DAMAGED DEMO AS A NEW VEHICLE. MOST OF THE MILES PUT ON THIS TRUCK ARE FROM RUNNING IT UP TO PHOENIX AND BACK. WE HAD PRE-ARRANGED SERVICE TIMES AND WERE TURNED AWAY SEVERAL TIME