plymouth71
The Moomobile
On a 1971 scamp,i have a bad vibration at about 60mph.The u-joints are good,the driveshaft appears to be true as do the rear axles.The wheels appear to be true and in round.The motor and tranny have been pulled,but everything was marked for installation.There does seem to be a flat spot in the gas feed as soon as the pedal is pressed,but i am not sure if this is related to the problem.Any help would be great.