Re: BAAAAD Vibration!!
If it vibrates at any RPM then its somewhere in the drivetrain and not the engine. Meaning, anything from the motor/tranny mounts to the tires and everything in between.
Throwing it neutral narrowed it a little more for you. Id rotate the tires and leave off the caps. See what happens.
The long humming noise is usually in the tires or brake drums. I overlook drums alot for causing vibration. Especially if you have 4 drums.
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Frank
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