Silverado9

Nothing new , but my 17 ,1500 5.3   6 speed transmission has a shudder when hot, and cold, slight exceleration and mashing the throttle.  Brought it back, they did their little dance and said it`s normal, bla, bla, bla, "It has to learn your driving style" -  " That`s normal for this truck"- and my favorite,,,, " We took it for a ride but could not duplicate the problem". Finally  they did a Trans flush and it seems to be slightly better. I read on this Beautiful Chevy site that the trans should be flushed 3 times to ensure all the material has been removed from the transmission.  Now, seeing that they could not find a leak in a tire 3 different times on another occasion , does not give me a lot of confidence in their ability to flush a transmission the right way. Love the truck , but i can see why people are going elsewhere to buy a truck. Any help would be appreciated !