[STEVE 0]

Hey guys,

I'm running about a 2.5 inch lift right now, and it had a bit of a driveline vibe. So I did a transfer case drop to eliminate it. afterwards I noticed an intermittent rattling/clicking sound. Only when the Jeep is in motion at certain RPMs.

Is it possible that the drop put the drive shaft too far into the tcase? The yolk still has an inch of play.

 

[jokerchief462]

Maybe the new angle has showed you have chain slack and that is the source of the noise??? Did the vibes go away??

 

[Charley24]

U-joints sometimes click or pop when in motion.

 

[0III0forlife]

I would agree with all of the above.

Although you shouldnt need a t-case drop for a 2.5 lift, but if it took the vibrations away then all is good.

I would think that the vibration wasn't the angle of the driveline but more of a u-joint that has some play in it.

 

[STEVE 0]

Ok Cool guys I will check the u joints add the noise is getting more frequent. I'll post back with the findings.

 

[STEVE 0]

And yeah the vibs are gone. No change in the noise in 4 wheel drive.it really sounds like the exhaust is rattling under that skidplate, but everything feels tight.

 

[DasfieldmarshelsYJ]

When I lifted mine the exhuast bracket snapped off and rattles like a mother now

 

[tigerblood]

My exhause rattles like crazy with a 2.5" lift and 1" shackles. I just havent hat time to fix it lately.

 

[STEVE 0]

The u-joints look good. I figured they were, as i replaced them a little of a year ago. here is my theory, the lift that I have used to be a 4 inch, but it has sagged . So when I installed it I added the rear trackbar relocation bracket and what it looks like is with the sag and tcase drop the exhaust is touching the trackbar. sounds like a good reason to cut it out. I will cut it out and post back if it fixes it.

steve