I pulled the front driveshaft out (ujoints went bad on trails) and as soon as pulled it started rolling in park. About 10 feet in 8hours. I did some research is it ture this happens cause driveshaft is out never did it before

 

That's due to it being all wheel drive. Use your e-brake or chock the tires. I had a family friend killed due to that. He had no idea that it could happen and well his jeep drug him 45 feet... And yea... Don't park on hills....

 

Sry to here I'm chalking wheels right now plan to fix tomorrow but is this ture cause its all wheel drive? I don't understand how does the front driveshaft keep it from rolling? How does the truck know its in or out?

 

Gears in the t-case.
Since there is no draw ie a front driveline the front yoke is free to spin like the spider gears in a rear end do. Same idea if you jack a rwd rig up at one rear tire on a hill. It's gonna roll.

 

Really? I belive you cause it started happing as soon as I pulled it. That's just so weird. Will it damage t case with it out? I've maybe driven 300 miles at most with it out home from trails and just 3 miles a day to and from work.

 

I would get it sooner than later but.....I've never removed mine unless I was fixing it the same day.

 

yes, eventually it will wear out the viscous coupler.

 

Ill be putting it back in today. I just didn't know about any of these problems with it out. Cause I've seen alot if my freinds with 4wheel drive trucks pull it and no problem. Seen a few all wheel drive zj's pull it and no problem. Its just so weird but OK. And I only pulled cause of problems with it on the trails. And tought it would be fine to leave out