I guys, im wondering if a little up/down play in the front yoke is normal on my jkur 2014? Every bolts are tight!

 

If the yolk is stock yes. It has a rubber bushing on it for flexing. If mine moved I would be in bad shape. Tom Woods Yolks do not have any bushings.

 

I have an adams driveshaft and when i push up and pull down i can feel the hole shaft moove.... dialed it and its around 1.3mm.

 

Well I'm going to say it's not ideal. You haven't bent any control arms or anything recently? Mine has no play this might not be good something is a miss here.

 

The only thing i see that can be related to that is when i install the my adams DS

I did not check the runout and my tires was terribly out of balanced so i didnt noticed no vibration other than the tires. So when i swap for new tires, I new something else were vibrating... looked at the driveshaft and there wasa 0.020 of an inch runout!

Rotate the DS 180 degree in the yoke and 0.003 runout but at this moment i noticed the play so maybe my DS killed my bearing... am i crazy or this would make sense?