Here is the problem. Every once in a while while sitting at a stop light my truck will start to vibrate very badly. If I shift into neutral and then back into drive the problem goes away. If I leave it in drive it just vibrates and then as soon as I drive away the problem goes away. Any suggestions? Thanks for the help.
My truck is a 97 F150 4x4 5.4l http://www.geocities.com/Baja/Mesa/9131