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[blueb8llz]

and you didnt have this problem with the other tires/wheels? if not, then it is most likely unbalance tires. maybe try fitting your tires again, the foams may have shifted inside. do you have sloppy steering? make sure all screws are tightened down on the steering assembly. servo saver spring weak? put some toe in on the rear tires. you can try putting some spacers on the front springs to make them stiffer than the rears. check your hindge pins and shock bottom caps.