Yes.
yes
On a Wrangler, the most common cause of u-joint wear is incorrect driveline angles. Unfortunately you didn't provide any other details about your driveline setup but this should be a good place to start.
The transmission is not shifting in and out of gear or your front joint is going bad
Wrench or twist the ligaments of (an ankle, wrist, or other joint) violently.
violently masturbating
Worn out/bad universal joint(s) in the driveshaft(s).
Must not be installed correctly. If the joint is not perfectly centered it will vibrate.
A universal joint on the driveshaft going bad.
check driveline, my universal joint went bad and did same, replace and was fine(1990 loyale)
Well, if it is a front driveshaft, the issue is a CV joint and you'll have to remove the driveshaft and take it in to be rebuilt. Taht will run you $150 or more. If it is a rear driveshaft, it will be cheaper if you remove the driveshaft and take it to a driveline shop where they can press in a new u-joint.....I'd recommend you replace both. A guess? $60 to $80
Could be,wheel balance,bad universal joint,bad axle CV joint,
There are several reasons. Two common reasons would be warped brake rotors or a bad ball joint which should be fixed immediatly.