If, it is more like a shudder then, I would look at your RE CA bushings.

OK, the shudder is not in the equation because, you would feel it immediately from 0-whatever speed. Don't knock your intelligence and call yourself "not smart enough". I am a newbie after 4 yrs of chasing stuff. We all keep evolving and learning. I jumped on the bushings because you said that it happened in "2wd".jeepcaptain said:Thanks f9k9. They do have a few cracks. As far as a shudder versus a vibration, i'm probably not smart enough to tell the difference. I can really feel it in the steering wheel and sitting in the pass seat.
This, possibly caused by bad CA bushings.Eric said:vibration under acceleration is usually caused by a rear driveshaft issue, either bad angle, bad u joint, out of balance etc.
Sweet!jeepcaptain said:I had to do some serious searching for it but found a slightly worn u joint at the back end. It had a very, very small amount of play but it sure was causing a lot of vibration. Thanks again for everyone's help!