There are 6 choices

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(head only)
- 120 MPH
  - unleaded gasoline
  - Without unleaded gasoline
- 140 MPH
  - unleaded gasoline
    - KPH
    - Without KPH
  - Without unleaded gasoline
- 85 MPH

Speedometer for 1978 Mercury Grand Marquis

Fits: head only 140 MPH unleaded gasoline Without KPH (change)

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