Related Clues

• They may be stripped
• First, second, reverse, etc.
• Adjusts
• They may be shifted or stripped
• Subjects of ratios
• They're sometimes stripped
• First, second and third
• Attunes
• You may use a stick for these
• They may get engaged
• First, second, third and reverse
• See 8-Across
• Toothed wheels
• Four-on-the floor quartet
• Engaging parts
• Forward and reverse
• Clockwork components
• Transmission options
• Drive and reverse
• They may be switched