Practice question

Why must the inter-axle differential lock be disengaged when driving on dry, high-traction pavement?

  1. Keeping it locked on dry pavement causes severe driveline binding ('wind-up'), tire scrubbing, and catastrophic axle or differential shaft breakage during turns
  2. It disengages the drive axles, leaving the vehicle without traction
  3. It permanently disables the anti-lock braking system
  4. It reduces fuel delivery and limits the engine to low power

Answer: A — Keeping it locked on dry pavement causes severe driveline binding ('wind-up'), tire scrubbing, and catastrophic axle or differential shaft breakage during turns

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