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Randall    (Cheeko)
Randall (Cheeko), Certified Mechanic Ford Motor Co.
Category: Ford
Satisfied Customers: 2395
Experience:  18 years as a Ford tech and still going
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what are the rear axle ratio codes for 2003 ford f250 super duty

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Hi, below is the information, you can get the code off the sticker in the drver door, thanks

graphic

The following lists the gear ratios on rear axles.

  • 31 - 3.73 non-limited slip, F-250/Excursion
  • 32 - 4.10 non-limited slip, F-250
  • 41 - 3.73 non-limited slip, F-350
  • 61 - 3.73 non-limited slip, F-350
  • 73 - 4.30 non-limited slip, F-450
  • 75 - 5.38 non-limited slip, F-450
  • 78 - 4.88 non-limited slip, F-450
  • 81 - 3.73 non-limited slip, F-350
  • 88 - 4.88 non-limited slip, F-350
  • 95 - 5.38 non-limited slip, F-550
  • 98 - 4.88 non-limited slip, F-550
  • C1 - 3.73 limited slip, F-250/Excursion
  • C2 - 4.10 limited slip, F-250/Excursion
  • C3 - 4.30 limited slip, F-250/Excursion
  • D1 - 3.73 limited slip, F-350
  • D2 - 4.10 limited slip, F-350
  • D3 - 4.30 limited slip, F-350
  • E2 - 4.10 limited slip, F-350
  • E3 - 4.30 limited slip, F-350
  • EW - 4.10 limited slip, F-350 (ambulance package)
  • F1 - 3.73 limited slip, F-350
  • F2 - 4.10 limited slip, F-350
  • F6 - 4.56 limited slip, F-350
  • G3 - 4.30 limited slip, F-450
  • G5 - 5.38 limited slip, F-450
  • G8 - 4.88 limited slip, F-450
  • GW - 4.88 non-limited slip, F-450 (wide frame)
  • K5 - 5.38 limited slip, F-550
  • K8 - 4.88 limited slip, F-550
  • KW - 4.88 non-limited slip, F-550 (wide frame)
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