[EVLZ06]

I have searched a searched and read all types of vibrations but can't seem to figure mine out.

I have an 03 qcsb 4x4, auto, 170k miles. The truck has a vibration that I feel in the floorboard. It happens between 65-75 mph. On acceleration and decel. I do not hear any noises out of the ordinary just a constant vibration that is very noticeable. I do not feel it in the steering wheel.

I just bought the truck and have pulled the front drive shaft....no change. Had the new BFGs re-balanced...no change. I've checked the the front axle u-joints and the seem tight with no play. The rear driveshaft is new as I believe the previous owner out one in to try and fix the issue. It has a driveshaft sticker on it and has weights welded on, so I know that it has been balanced.

I'm looking for something I've over looked.

 

[Dieselman1017]

I have had a slight vibration from passenger side since I bought it all the joints were good in drive lines. The other day I had the front end apart for a axle seal and the right side axle u joint appeared to be good when truck was assembled but when I got the axle out the u joint was locked up and could not move it one direction. I replaced it and low and behold vibration was gone. This fixed mine. Hope this helps.


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[Connor Trahan]

I had a weird vibration and it was my transmission bracket rubbing on the exhaust making a noise from hell. I have a 5inch turbo back, its tight. Maybe check there?

 

[EVLZ06]

Found the issue. The driveshaft was bent. When they put it on the machine it was doing a jump rope affect. The other company used to thin of steel causing it to sag. Built me another one with the proper gauge and am vibration free.