TC or Trans Chatter 2008 F350

[Simpleman]

When the truck is hot and I say come to a complete stop at a stop light and turn hard right its either the TC or the Trans starts to chatter for about 5-8 seconds as I am turning and then runs and shifts without incident, If come to a complete stop at a stop light and go straight no chatter at all. So any Ideas what to look at?
Thanks