MOTIVE GEAR
More Information for MOTIVE GEAR F975
{Alternate Inventory Numbers: F9.75-355, F975410, F9.75-489, F975373, F9.75-430, F975456, F9.75-373, F9.75-410, F9.75-456}
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MOTIVE GEAR F975  
Choose Gear Ratio Below
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Choose Gear Ratio:
  •  
  • 4.10 Gear Ratio ($279.79) Delay1 Day DelayWarehouse
  • 3.55 Gear Ratio ($301.79) Warehouse
  • 3.73 Gear Ratio ($301.79) Delay1 Day DelayWarehouse
  • 4.56 Gear Ratio ($307.79) Delay1 Day DelayWarehouse
  • 4.89 Gear Ratio ($313.79) Delay1 Day DelayWarehouse
  • 4.30 Gear Ratio ($314.79) Delay1 Day DelayWarehouse
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Part image
MOTIVE GEAR F975 Specifications
Cover Bolt Quantity12
Differential Case Design TypeFORD 9.75
Pinion Shaft Diameter (IN)1.97
Pinion Spline Count31
Ring Gear Bolt Quantity12
Ring Gear Material8620 Steel
Ring Gear Outside Diameter (IN)9.75
Ring Gear RotationStandard
Features:
  • Engineered to meet or exceed original equipment manufacturer's specifications
  • Computer controlled production and double-lappiong result in a strong, quiet and dependable ring & pinion
Differential Identification Guide

To order the correct ring & pinion, it's crucial to know the differential type and gear ratio on your vehicle.
  • First, determine your Differential Type.
  • Next, determine the gear ratio on your vehicle using one of the following methods:
    • Count The Teeth: Divide the number of teeth on the ring gear (big gear) by the number of teeth on the pinion gear (small gear). If you have 37 teeth on your ring gear and 12 teeth on your pinion gear, you have a 3.08 Gear Ratio (37 ÷ 12 = 3.08).
    • Verify Through A Dealer: Verify the ratio using your VIN number. This will only be accurate if the differential has not been previously modified.
Additional Resources

Installation Instructions

Attention California Customers - Cancer and Reproductive Harm - www.P65Warnings.ca.gov

OEM / Interchange Numbers: 3L1Z4209CB, 3L1Z4209CD, 4L3Z4209BA, 5L3Z4209E, 8L3Z4209K, 8L3Z4209KA, 8L3Z4209Q, 8L3Z4209R, M4209H373, M4209J410, M4209J456

Warranty Information:
1 Year or 50,000 Miles