Vibration help!

[projekz]

I'm looking for a bit of guidance on this issue. I've have a vibration between 45 and 55 MPH. I actually had a vibration before that but I've narrowed it down a bit.

 

When I first bought my truck it needed a bunch of maintenance and some parts replaced so here is what I got done so far:

 

New Springs

New Struts and shocks

New front lower control arms and ball joints

New rear lower control arms

New front sway bar links and bushings

New tires (last week)

Alignment (last week)

 

I ran the truck on the hoist today and the right rear wheel and tire seem to bounce more than the others so I will be switching it with the spare to see if it helps. The vibration is felt in the whole truck and it gets a lot worst when in 4Hi. I can feel it in my seat and in the steering wheel. I checked the wheel bearings and the driveshafts and I can't see anything obvious.

 

Any pointers or suggestions?

Edited December 13, 2012 by projekz

[rocky2]

Wow

sounds like you've done pretty much everything

 

wheels balanced?

tie rod ends?

rear brake drums warped?

drive shaft hit/bent needs balanced?

 

Good luck

[fleurys]

One easy test to do is to remove the front drive-shaft. If the vibration goes away, you know it's between the front wheels and the transfer case... I would bet alot of money on the front u-joint...

 

S.

 

look for my post on this..

 

S.

[projekz]

Have you had that problem Fleury?

[fleurys]

yes. read here : http://www.nissanpathfinders.net/forum/topic/25609-spicer-u-joints-vs-oem-nissan/page__hl__neapco#entry481906

[Alkorahil]

none of the wheels are out of round?

[projekz]

I got around to checking the front driveshaft today. The U joint beside the transfer case had a flat spot in it so I went ahead and replaced it. It hasn't changed a thing.

 

I'll try to make some time to check the wheels and rear driveshaft tomorrow or Monday. I'll report back here. I might just go ahead and replace the rear driveshaft u joints since I will take the shaft out anyways.

[fleurys]

did you do a road test without the front driveshaft ?? because my ujoints when I had the vibration looked ok too...but they were the problem...

 

S.

[projekz]

I road tested it without the front shaft and the vibration was still there.