So my '03 Trailblazer has developed a vibration. First noticed it in Boerne during the RoundUp. Seems to get a little worse as speed increased, was more noticeable when pulling Joe's trailer. Funny thing is, I don't see it in the steering wheel as you sometimes can (like on our Camry.)
I figured it was a wheel out of balance. Finally had wheels rebalanced and tires rotated. Vibration is still there.
Any thoughts? Need any other info?
details:
'03 Trailblazer, 6cyl
120,000 miles
Thanks