Here is the deal, I have and 83 cj7 with an amc20 & t176 trans. My problem is that after this was posted:

http://www.bulltear.com/forums/viewtopic.php?t=5035

I rebuilt my rearend with a used housing. I also put in new ujoints. Now when I am going down the road, I have a vibration coming from the rear of the jeep. It does this under power, AND while coasting in gear. When you push in the clutch it goes away completely.

Any suggestions? cheapie joints? bad joint install? WTF?

Jack, you caused this, you need to come down here & help me fix it......I'll buy the beer & grill lighters.

Dave