I have a vibration that starts at about 55 mph. It can bestbe felt through the seat as ashaking ofthe vehicle body and is most noticeable on a very smooth roadway, which is rare where I live. There is no noticeablevibration or movement in the steering wheel.

The vibration was noticed after 4 new tires, 2 new struts/2 new shocks, and sway bar bushings were replaced, allabout 4 weeks ago. I have no mechanical training but I have a hunch it's coming from the rear.

I initially thought it was caused by bumps in the road but that's obviously not the problem. Could it possibly be a bubble on a tire? bearings?

Suggestions?

 

if you feel it in the seat and body then its the back tires
check
1 tire mounting loose wheel
2 maybe they forgot to balanceone/both of the 2 rear tires
3 bad tire/broken belt
4 bent/damaged rim

 

Thanks, we'll look into that and get back to you here.