Quote:
Originally Posted by WSSix
I'm still fighting a vibration issue with my car. I've slowly been testing areas and making adjustments. Here's where I'm at now.
1) I have new wheel adapters that center on what little bit of a hub I have. They fit great.
2) I've had the rear of the car up and have been checking that right rear axle. It's not the wheels as I can swap wheels side to side and the wobble is the same regardless of the wheel. .
3) I can also see the rotor wobble as it rotates and it pushes the caliper in and out as well. There's definitely an issue with the flange and not the wheel balance that's vibrating the car.
Thanks
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Based on your previous statements above I have a few comments. The one I have labeled #3 though stands out the most to me. I would start here since that is not normal. For this wobble to occur a few things could be causing this. Axle flange face may not be "true and 90" with the shaft, assuming you run a two piece rotor, your rotor hat may not be "true", or rotor may not be "true". If you run a 1 piece rotor it also may not be true. Then there are the adaptors you are running, are those true in thickness when checked in multiple areas?
Then,,,,, if you are super unlucky, it could be a combination of all the above in what's called "tolerance stacking". 005", .005", .005", 005" starts to add up and wobbles will occur that also translate into vibrations. If you think about the above and the motion it would create if these components are not true and of consistent thickness, it absolutely would create an increasing vibration as the near hub center issue works its way up through the heavy, large o.d of the wheel/tire combo...
I would like to see that video of the rotor wobbling and pushing back on the caliper piston. Also curious what brake package?
Hope this helps.
Jay