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Old 08-07-2017, 05:05 AM   #25
lionssfan

 
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Drives: 2010 2ss camaro
Join Date: Nov 2010
Location: mi
Posts: 1,184
My flat spot showed up around if I remember right 25 to 45 mph. And that's after a week sitting. But clears up pretty fast after warming them up. My brand tires are invo. Over the winter time sitting it took longer to clear up the shaking. I had to drive more then one time.
Michelin tires i never had a problem. Look at the wheel weight location carefully And more likely all your weights are inboard. And since this is a recent Issue you should be able to see an old witness mark where the old wheel weight fell off possibly. Too bad you can't rotate tires these days front to rear if needed to see if there's any change in vibration. The tire size dilfferences doesn't make it possible.
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2012 zl1 stock 7000 miles
2010
TVS2300, BTR cam PD stage 3, ID1050 injectors, CHE bronze trunnions, 7.400" pushrods,.660" lift platinum springs, Titanium ret, Zl1 fuel pump, Kooks LT headers, High flow cats, Roto Fab CAI, Corsa exh., Mellings oil pump, HD chain, ls2 damper, all synthetic, BMR control arms, zl1 toe link, BMR cradle mounts, W/bottle relocation, air scoop deflector, Hennessy wheels, two piece rotor, morimoto fogs, DRL harness, coilovers, Heads up install, mgw shifter, slps splitter, slp spoiler, zl1 side skirts, painted strips, debadged, tinted, 2018 emblems.

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