Slight Vibration in 06' TJ

[PretorDepot]

I have a slight vibration under my floorboard on the driver side. My TJ is lifted 4 inches. You cannot hear anything, but if you place your left foot square in the center of the floorboard, which is where mine sits when not working the clutch, I can feel a slight knocking/vibration. I think it is related to the brakes, but really am not sure. I have had everything double checked on the lift as recommended and everything is tight. It did go away for a bit after I had the rotors turned about 10K miles ago, but it has come back. It does not affect the way my Jeep drives, but I still would love to know the source or maybe where I should be looking. Any thoughts? By the way, everyone on here is awesome, I wish I had found this forum sooner.

 

[Bounty__Hunter]

Welcome to the Z.

I suspect front pinion angle or possibly a bad CV joint on the front driveshaft. Try removing the front driveshaft and see if it goes away, that would really narrow it down.

 

[PretorDepot]

Thanks for the reply. If I am just getting in to jeeping, is that something I should attempt to tackle on my own or should I take it to my friendly 4x4 place? I've asked, but they say it is just a Jeep being a Jeep. Man, I love reading all these questions. You should have to join the forum when you buy a Jeep.

 

[Bounty__Hunter]

You don't have to put up with vibes.

Removing the front driveshaft isn't too bad, hardest part is getting a wrench to the 4 bolts holding the driveshaft onto the front output of the transfer case. Then it's 4 bolts on the axle yoke and it comes right out. Safe to run without it, let us know if it still had the vibes after removal.

 

[tom_TJ_performance]

do you have the rubicon? if not you might need to get an SYE kit. the problem my be drive line vibration. it could also be u-joints, pinion bearing or pinion angle. either way i would suggest a SYE kit.

 

[PretorDepot]

I have a X. I keep hearing everyone endorse the SYE, is it that good? I only ask because I do not know. If so, is there one anyone would recommend in particular?

 

[Bounty__Hunter]

Performance Off Road Center is a SYE for $170, has a lifetime warranty. I've installed many of those and they are decent kits.

They aren't a necessity, but nice to have to get away from a transfer case drop.