I've heard this a few times now with new driveshafts. Could it be that the driveshafts or one if them isn't balanced right? Do you still have your stock driveshafts? Maybe throw those back in and see if it still vibrates.

 

We'll I pulled my rear and drive front wheel only. I pulled my front. The issue persisted. Ill try this again. The u joints looked fine also. Ill do this tomorow. Ill let you know! Thanks for the suggestion. Anything helps at this point

 

But if they are both out of balance then the issue would persist either configuration. Seems if this problem started after the driveshaft install then it should be related. I would install the stock shafts and see if the vibrations go away.

 

That requires swapping yokes which unfortunatelt I don't the tools for at my disposal. It'll have to wait to throw the stock shafts back in. As for these ones maybe ill just take em to a driveline shop. Anyways though they sdyarted right after the lift. Not just the driveshafts. I took off my skids already to make sure it wasn't that.

 

Did you install control arms with this kit? If so, which ones? Maybe you need to address the pinion angles??

 

Lowers. I'm going to pull my driveshafts out today and drive in 4wd etc. ill let you know what happens

 

Took off my rear drive shaft. Definitely a better feeling less vibration. Still has some tho. I did notice earlyer with both on that 4 wd was better... So at this point I'm kind of screwed because my rear Adams 1310 is completely stuck and I can't extend to even get it back on. Going to the shop to put the stock back in tomorow. Hopefully that'll help rule out a few things. Then ill try pulling the front also. I emailed Adams about the rear. I've read that if u can find a way to force it you may be ok after re greasing. Just wana hear from the maker. Anyways ill update later

 

So got the rear Adams driveshaft back in. Greased everything. Put in my rock krawler rear trak bar. Balanced all 4 tires. Removed my spodertrax spacers( rubbings at full turn but want to see what happens) it appears the issue is when I'm going slower rather than faster.
I give up for today.

 

Wow man, wish i could offer more help.. Keep us posted

 

I just bought a Rubicon Express driveshaft (1310) for my 2 door JK and I'm getting quite a bit of vibration as well.

The angle is all off on the axel so I ordered Read Upper adjustable control arms. Do I just take off the uppers, jack up the shaft until it's straight and then adjust and connect the new upper control arms??

Is it bad to keep driving with that vibration?

I have a Zone 3" lift

Thanks guys