I had an 05 and now an 06 both did it,a friend of mine was one of the engineers on gt from the start ,tells me it is inherent to this trans,suggested I double clutch,mine is worse when cold
good luck
Good luck,I have been a Ford dealer 13 years,surprised your still alive! its tough , but still love it,I also love my 06 red and white FGT,ALSO LOVED MY 05 THAT I TOTALED John Carpenter