It's a common affliction. Around town, your car runs fine and can fry the tires at will, but at highway cruising speeds above 65 mph, you feel a slight vibration in the seat of your pants and through ...

If you're planning to drive your hot rod or custom (and why wouldn't you?) you need to make sure the engine, transmission, third member, and driveshaft are all working together in harmony. The piece ...

Have you recently had your 4x4 lifted and are suffering from a harmonic oscillation that can both be felt and heard? Have you rebalanced your tires or swapped in newly balanced driveshafts only to ...