NHTSA Complaint #10146352 — 2000 FORD MUSTANG

I HAVE A 2000 FORD 3.8 LITER MUSTANG. IT HAS A VIBRATION AND COVERT FORD SAYS ITS NEEDS NEW MOTOR. I BOUGHT THIS CAR NEW, TOOK GREAT CARE OF MOTOR, IT JUST TURNED 70,000 MILES. COVERT SAYS IT HAS EXCESSIVE END PLAY ON THE CRANKSHAFT DUE TO WEAR. I THINK I HAVE AN AMERICAN-MADE PROBLEM. 70,000 MILES???? THANKS FOR ANY HELP THAT YOU CAN GIVE ME. THEY WANT $4,600.00. I THINK FORD OWES ME MOST OF THAT AT THE VERY LEAST BECAUSE I SURE CAN'T AFFORD TO FIX IT. YOU KNOW ITS FUNNY ALSO BECAUSE UP TO THIS POINT THAT CAR HAD NEVER BROKEN DOWN AND HAD NEVER BEEN IN THE SHOP . THIS IS OTHER THAN 15 OIL CHANGES TWO BATTERIES AND TWO SETS OF TIRES... I JUST THINK ITS NOT NORMAL. PLEASE HELP WITH SUGGESTION. *JB