This vibration started about 6 months ago and is slowly getting worse. I had an alignment done and the front tires re-balanced. No improvement. Yesterday I replaced the front tires and still no improvement. Could this be coming from the rear wheels? How many of you re-balance the rear duals at periodic intervals? Mine are just over three years old and have never been off. Any suggestion is welcome

It could be the center drive line support bearing.

enblethen wrote:It could be the center drive line support bearing.Hmmmm that's a thought. Going to drain & refill the differential here in a day or two and I'll take a look then. Thanks

while you are under the rig check for bad U Joints also. yes rear tires can also be out of balance and cause vibration. If fronts are out you usually feel it in the steering wheel. If rears are out, you usually feel it in the seat of your pants.

othertonka wrote:while you are under the rig check for bad U Joints also. yes rear tires can also be out of balance and cause vibration. If fronts are out you usually feel it in the steering wheel. If rears are out, you usually feel it in the seat of your pants.This is definetly in the steering wheel

Were the front tires spin balanced on the vehicle? that way you balance the whole system, brake drums/rotors, wheels and tires. Check for out of round tires/wheels.

Vibration at 70 mph | Good Sam Community

15 Replies

othertonka
Explorer
Jul 31, 2014
Were the front tires spin balanced on the vehicle? that way you balance the whole system, brake drums/rotors, wheels and tires. Check for out of round tires/wheels.
fisher60
Explorer
Jul 31, 2014
othertonka wrote:
while you are under the rig check for bad U Joints also. yes rear tires can also be out of balance and cause vibration. If fronts are out you usually feel it in the steering wheel. If rears are out, you usually feel it in the seat of your pants.

This is definetly in the steering wheel
othertonka
Explorer
Jul 31, 2014
while you are under the rig check for bad U Joints also. yes rear tires can also be out of balance and cause vibration. If fronts are out you usually feel it in the steering wheel. If rears are out, you usually feel it in the seat of your pants.
fisher60
Explorer
Jul 31, 2014
enblethen wrote:
It could be the center drive line support bearing.

Hmmmm that's a thought. Going to drain & refill the differential here in a day or two and I'll take a look then. Thanks
enblethen
Nomad
Jul 31, 2014
It could be the center drive line support bearing.

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Vibration at 70 mph

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