I CAN HARDLY BELIEVE IT, but after 4 months of multiple efforts by 2 dealers and 3 tire shops to get rid of my vibration----it's about 99% GONE! I tried a local Buick dealer that had the GSP 9700 and when I got it back the road force variances were 40lbs, 40lbs, 78lbs, and 100lbs. When I drove the truck away it was much worse than when it went in.
I then began fighting with Goodyear telling them that I had 4 defective brand new tires. A Goodyear rep called me (nice guy) and suggested to take it to another place that had the GSP9700 and have the tires rebalanced at their expense.
Well now the road force variances are 1lb, 7lb, 7lb, and 14lb. I had my usual 40 mile drive home after the work was done and it was the first time since I bought the Tundra that I had no vibration! I still have a stiff ride but it's a lot more tolerable without the vibes. I'm going to put a fiberglass toneau cover on it (approx. 150 lbs.) and I have a hitch (60 lbs). The thing about this truck is the more weight that is in it the better it rides. I'm hoping that the warmer weather will take out some of the stiffness also.
Someday I'll get the Michelins, but for now it's not bad and my money needs to go other places.
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