1968 thunderbird
I have recently purchased a 1968 thunderbird 429 thunderjet. My problem is at speeds above 60mph the car shakes and seems to be the worst when I let off the gas. I am no mechanic but I thought it could be control arm bushings but why would it be alot worse when I am not accelerating? I already got the new bushings but dnt want to start to change them if thats not the problem any help would be greatly apreciated.
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