Engine/Transmission (1998.5 - 2002) New vibration

[Boost]

I now have a vibration that I can feel through the steering wheel, go pedal and floorboard. It starts at 71 mph and quits at 75. My tires are about 75% worn. (trying to make them last till winter) I went back to the dealer and they rotated and re-balanced my tires but it did not help. It is not rpm related. I tried in 4th and 5th and it aways happens at the same speed. Any thoughts?



Rob

 

[ToolManTimTaylor]

Shifted belts within the tyre can cause this and not show up on a balancer (Especialy being balancers only spin up to 65 MPH)



Universal joints or center bearing are another culprit sometimes.

 

[Boost]

I have a new set of Toyos sitting in the garage that I'll have to put on a little early. I did notice two slight bulges in the sidewall of one tire. After the new rubber I'll see what happens and go from there. BTW this is the first problem I have had with this truck in 27K miles. ( the first that wasn't my fault)



Rob