The phone call to the Tremec tech line went something like this: "Yea, I just bought your Magnum six-speed and put it in my car. The overdrive is great, I love it but now I've got a vibration that ...

In an internal combustion engine, air and fuel are injected into the cylinders, where ignitions occur in a controlled environment. The combustion cycles force pistons to move, and that movement is ...