Howdy. I've been a long time lurker here, it's a great site. I do have a question: Right around 40-45mph the floor shifter has a vibration/rattle noise that is driving me nuts. It will stick around for a little while and then go away. Letting of the gas does not seem to help. Also, in 4hi it makes the same rattle. The dealer has installed a new shifter assy with no help...they are baffled and so am I. They think that it is some other vibration from the truck that happens to end up at the shifter. Has this happened to anyone else?
Gary

 

How about loose or damaged transmission mounts??

-Jon

 

My shifter freakin' rattle's to high hell. I've got used to it though, so it does'nt really bother me. But it looks like Ford could do a little better than this! The next truck I get will be an automatic. I'll problably have trouble out of it too. What's this world coming to?

 

Thanks for the help. They found that, with the help of some senser gizmo's, that it is the rear driveline. Wierd huh?

 

did there solution work and what did they do?

 

The driveline, at the time of that post, had something to do with it. But 7700gvw, take a look at my post under yours.
-Gary