Vibration driving me crazy

Reply Subscribe

Thread Tools

Search this Thread

Apr 23, 2009 | 12:03 PM

anaphe

Thread Starter

Freshman User

Joined: Nov 2008

Posts: 31

Likes: 0

Vibration driving me crazy

OK So I am getting ready to tow my race car and trailer about 600 miles through the rockies to an event in 3 weeks and I really want to see if I can track down and anhilate the vibration I am getting. Has been there since I bought the truck and now I am ready to tackle.

I am going to replace the 2 joints on the rear shaft as a preventative measure (cause they are cheap) but something tells me this isn't the issue. I have read everyone elses posts and this is what I plan.

1. remove shaft and replace joints
2. rebalance driveshaft

see where that gets me I am hoping it will make the issue better.

There is little noise other then some "drumming" if I have a bottle of water in the console it shakes like crazy around 65-72 mph if I put it into neutral it still shakes but maybe a bit less.

I have already re-balanced the tires.

Am I on the right track?

Thanks

A

Apr 23, 2009 | 12:43 PM

EXv10

Post Fiend

Joined: Mar 2009

Posts: 11,798

Likes: 14

From: Mt. Shasta California

Quote:

Originally Posted by anaphe

Check for miss but you say it goes away when put in neutral?????

Apr 23, 2009 | 12:46 PM

soutthpaw

Laughing Gas

Joined: Jun 2005

Posts: 1,009

Likes: 1

From: Colorado

yeah a specific speed vibration sounds like an out of balance drive shaft or bad u joint. Definitely a good place to start. did you try rotating the tires too? balancing was gonna be my first recommendation but looks like u did that... Consider a Match balancing if driveshaft and u joints don't fix it... are u sure the hubs and front drive shaft are staying unlocked ?

Does the truck have a suspension lift on it??

Apr 23, 2009 | 12:47 PM

anaphe

Thread Starter

Freshman User

Joined: Nov 2008

Posts: 31

Likes: 0

No it is still there in neutral it might go from a 9/10 to a 7/10.

and it disappears once the truck drops below 60mph

A

Apr 23, 2009 | 12:48 PM

anaphe

Thread Starter

Freshman User

Joined: Nov 2008

Posts: 31

Likes: 0

Thanks for the advice. I will check the hubs this weekend.

The truck is a bone stock 4x4 no lift.

Thanks

Apr 23, 2009 | 02:49 PM

dave91gt

Laughing Gas

Joined: Aug 2002

Posts: 896

Likes: 12

From: Kenna,wv

See my post and see if my symptoms match yours. It is titled something to the effect of "out of ideas regarding vibrations". Lots of good information there.

Apr 23, 2009 | 03:01 PM

clinter36

New User

Joined: Aug 2008

Posts: 20

Likes: 0

I had a similar vibration - noticeable drone/vibration 65 and up. Replaced the U-joints and no change. It turned out to be the rear drive shaft which a local shop rebalanced. But to be sure I removed the rear drive shaft and drove the truck on the highway in 4x4, I could tell right away the noise/vibration was gone. I suppose it could still have been a pinion bearing, but it was enough to convince me that it was worth taking the DS to the shop and have it balanced.