My March 2010 F150 with 5.0 is going in tomorrow for the shift - shuddering and also a surging problem. Surges while going through drive thru's as if you are holding the brake while tapping the gas pedal every 4 seconds. They have re-programmed the transmission which made the problem happen twice as fast.....it did help with the shudder during gear shifts. I have 35,500 miles on the vehicle, and have told them that it will not be picked up until they find out what is wrong. I have also asked them to replace the cam phazers as they are defective as well.