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Stevoone · 06-09-2016, 09:25 AM

By rotating the wheels 180 degrees on the hub they are trying to eliminate the possibility of run-out on the hub surface. GM had a similar procedure for brake rotors. We even had a "tool kit" that had wedge shaped shims to install between the rotor and hub. The 180 degree part is obviously not possibly on a 5 bolt wheel but it gets the general idea across.

We had a Cadillac engineer come out for a vehicle with a noise and his recommendation was to fill the frame rails with expanding insulation foam. In my experience the engineers really aren't anything special. It's mostly just to try and make the customer feel better.

Assuming they haven't done it yet I would look into have the tires road force balanced. Had a car about 10 years ago with a shimmy issue and no shops around had one of those machines. We ended up driving about 45 min away just to have the tire balanced.

06-09-2016, 09:25 AM	#13
Stevoone Join Date: Mar 2007 Location: NJ Posts: 540 iTrader: (2)	By rotating the wheels 180 degrees on the hub they are trying to eliminate the possibility of run-out on the hub surface. GM had a similar procedure for brake rotors. We even had a "tool kit" that had wedge shaped shims to install between the rotor and hub. The 180 degree part is obviously not possibly on a 5 bolt wheel but it gets the general idea across. We had a Cadillac engineer come out for a vehicle with a noise and his recommendation was to fill the frame rails with expanding insulation foam. In my experience the engineers really aren't anything special. It's mostly just to try and make the customer feel better. Assuming they haven't done it yet I would look into have the tires road force balanced. Had a car about 10 years ago with a shimmy issue and no shops around had one of those machines. We ended up driving about 45 min away just to have the tire balanced. Last edited by Stevoone; 06-09-2016 at 09:30 AM.