[Tulenkot]

2004 cc v6 4x4. It's kind of a buzzing vibration at 50-55 that I first noticed when I first removed my Leer truck cap. Thought maybe I changed the driveline angle or something at first but I've since put it back on and it's still there. I don't believe it's the tranny or torque converter because it happens even if I switch OD off or pop it into neutral. It's really hard to isolate where it's coming from (front or back). Truck is smooth at speeds above and below. Any ideas? Doesn't really feel like an out of balance tire either.

 

[zzoomz]

I have a 2003 cc 4x4 that does the same thing. I can't isolate it either. I am thinking maybe the carrier bearing?

 

[goreds2]

I had a vibration issue a few years back. I rotated the tires and that fixed it. Just a suggestion to try a simple fix first.

 

[Texasims]

Check the u-joints.

 

[The other Sean]

Check the u-joints.

^ ^ ^ This. U joints, carrier bearing....