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Home >> Ford >> 2004 >> Mustang Mach 1, Standard >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Noise, Vibration & Harshness >> Description And Operation >> Noise, Vibration And Harshness (NVH) >> Glossary of Terms >> Roughness

Glossary of Terms: Roughness

A medium-frequency vibration. A slightly higher frequency (20 to 50 Hz) than a shake. This type of vibration is usually related to drivetrain components.