Wow what a difference driving my 2011 F350 DRW 6.7. I had the shutter from 4th to 5th and 5th to 6th when upshifting then the hard shift when it went down in those gears. The dealer had it for a week and worked with Ford. The fix was an updated 2012 TC and flywheel. I've had the truck back for four days now and can't believe how nice the transmission works. Towing my 15k 5ther on the weekend was perfect with seamless shifting. The transmission solenoids were appearently the updated version already so they were not replaced.

 

Good to hear they got you fixed up, I wonder if this is what my truck needs, hard to get mine into see the dealer as they are 5 hours away.

 

My problems were more prevalent when towing heavy. The technician was excellent and even came out to meet me on the highway with my 5ther on his day off when I was on my way to a race. I've been dealing with the dealer that sold me the truck because of there excellent customer service.