An hour ago I crawled under the truck to look around for potential problems.
I bumped the main drive shaft and it didn't sound right, so I grabbed hold of it and it was rattling at the front u-joint. I found one of the cups had (0) zero needle bearings in it.

I had a vibration at ~ 65-70mph for about the last month or two.
I hope this will solve that.
I also hope this post will prompt others to check your drive line.
:
Got to go to the parts store and pickup the new joints with grease fittings.
fwiw: OEM joints lasted 138m miles.
Tom
I bumped the main drive shaft and it didn't sound right, so I grabbed hold of it and it was rattling at the front u-joint. I found one of the cups had (0) zero needle bearings in it.


I had a vibration at ~ 65-70mph for about the last month or two.
I hope this will solve that.
I also hope this post will prompt others to check your drive line.

Got to go to the parts store and pickup the new joints with grease fittings.
fwiw: OEM joints lasted 138m miles.
Tom