Well I thought the video ad instructions I read said a 1/4 inch, but it did seem like a bit more to me, but I was just eyeballing it. It also seemed a bit soft too, but of course I as pushing against it with a prybar. I am tempted to pull it all back apart to double check it as soon as the weather permits. So I have not been jumping into it, plus gas prices climbing up. I am after mileage.



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