Tranny/driveshaft squeal when driving.....
 

Hey there guys, question for ya...I have got a 96' 2wd F150 with a 4.9L and the AOD Tranny. The Problem is that when I am driving there is a squeal that sounds like it is coming from where the Driveshaft is slipped into the tranny. I checked the Ujoints and they are ok, but in the owners manual it says they are supposed to have pinhole type grease points, but they don't . They are sealed. But in the driveshaft, at where it is slipped into the tail end of the tranny there is hole, that looks like it could be a greas point. Is this a grease point or is it some kind of seepage hole, or vent hole. Any body have any experience with this...Thank you much... Trips7772(No Email Addresses In Posts!)

Tranny/driveshaft squeal when driving.....
 

The hole you see on the end of the yoke between the ears (where the U-joint attaches is a vent hole so the yoke can "slip" fore & aft on the Transmission tailshaft.

You can have a dry joint and it will feel ok. Worst thing the manufacturers did was install "sealed" U-JOINTS.....

Joints are relatively CHEAP compared to replacing a shaft with associated costs of balancing and installation.

Go ahead and replace them and make sure they have grease fittings (zerk fittings).

Larry

Tranny/driveshaft squeal when driving.....
 

Hey larry, thanks for the info.... I called a bunch of places and went to quite a few also, and no one knows a thing. I appreciate the help... This weekend I will be doing U-joints...

Thanks, Jeremy

Tranny/driveshaft squeal when driving.....