Problems with 2007 Ford F-350 POWER TRAIN

When gaining speed on highway vehicle shakes to the point of instability - afraid to drive stock tires not the problem have checked the alignment -twice cannot locate issue no recall issued

Truck was purchased new from lakewood ford in 2007/oct. took in for warranty work was told turbo was out they did not want to fix so they sent me to another ford dealer that stated nothing wrong with turbo- but head gaskets were blown(all)that was in nov. 2007 now truck is back at dealer for window markingsfrom window motor(they will fix but won't tint window even though was purchased from dealer that way) and they told us gaskets were blown again? well now i am at 34,689 miles and hopping they will not blow again ????? *tr

Tl*the contact owns a 2007 ford f-350. while driving approximately 35 mph on normal road conditions, the vehicle vibrated excessively and the front end began to shimmy. the failures occurred without warning whenever the vehicle was in operation. the vehicle was taken to an authorized dealer for inspection and they recommended that the contact continue to drive the vehicle and the failure would cease. on six separate occasions, the vehicle was taken back to the authorized dealer for identical failures, but there were no resolutions. the technician stated that the malfunction was a normal occurrence for this vehicle and could not be repaired. the dumper was replaced on the vehicle. in addition, transmission fluid began leaking from the vehicle at 4,000 miles. the dealer repaired the leak. the driver stated that the transmission leak was contributed to excessive vibration. the manufacturer was notified of the malfunctions on several occasions. the failure mileage was 16 and current mileage was 12,000.