Well, I didn't think I experienced this issue, but dropped the truck off at the dealership yesterday for an unrelated warranty issue, and had them do this while they had it. Got it back a few days ago, and the transmission feels like it shifts like butter. A much better improvement. I just told the service writer that I felt the transmission the way I know the issue was described in the TSB, told him I knew there was a TSB on it but the paperwork was at home, he said okay, and had them do it.

 

would a truck built in June of '10 ever need this tranny flash?

thx