[ford40]

I get that vibration on decelleration mostly in top gear on decelleration but I can feel it in 3rd and 4th decellerating. road force balanced all 4 tires iwht no improvement. Heard everything from dual flywheel to variable cams being the cause....oh well I've got a 100k porsche warrenty so not to worried at this point but it is a little disconcerting.