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Motive Gear F9-75-373 Ring and Pinion Set 3.73 Ratio Ford 9.75"

(Ford F-150 1997-2018, F-250 Super Duty 1999, Expedition 1997-2016, 2018, F-250 1997-99, Excursion 2000-04, F-250 Pickup 1997-99, E-150 2002-14 + 15 more models)

Part of: Motive Gear Differential Ring and Pinion Gear Sets

Other options in this family: Motive Gear D60-410 Motive Gear D35-355 Motive Gear D35-456 Motive Gear GM10-5-373 Motive Gear F8-8-410

Manufacturer

Picture for manufacturer Motive Gear

Part Number

F9-75-373
13 reviews
Sale Price

$352.49

1 left at this price

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Usually delivered within 2 days

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Product Details

The Motive Gear F9-75-373 is a high-performance ring and pinion gear set engineered specifically for Ford 9.75" rear differentials found in 1997-2010 F-150, Expedition, and Navigator models. This gear set provides a 3.73:1 final drive ratio, offering an excellent balance between acceleration and highway fuel economy for street trucks and light off-road applications.

Key Specifications:

  • Gear Ratio: 3.73:1
  • Application: Ford 9.75" rear axle
  • Fitment: 1997-2010 Ford F-150, Expedition, Lincoln Navigator
  • Material: High-quality forged steel construction
  • Heat-treated for maximum strength and durability

Features and Benefits:

  • Precision-cut gearing ensures quiet operation and long service life
  • Computer-controlled manufacturing process for consistent quality
  • Ideal for restoring factory performance or compensating for larger tire sizes
  • Developed through extensive racing and real-world testing
  • Direct replacement for OEM gearing with professional installation

Motive Gear ring and pinion sets are manufactured using state-of-the-art equipment and undergo rigorous quality control testing. Each gear set is designed to meet or exceed OEM specifications, making them suitable for both daily drivers and performance applications. Professional installation with proper setup and break-in procedures is required for optimal performance and longevity.

Products specifications

Fits

Ford F-150 1997-2018, F-250 Super Duty 1999, Expedition 1997-2016, 2018, F-250 1997-99, Excursion 2000-04, F-250 Pickup 1997-99, E-150 2002-14, Transit-250 2015-18, E-150 Econoline 1997-2005, Transit-350 2015-18 + 12 more models

Calculator

Gear Ratio Calculator

Cover Bolts

12

Installation Kit Included

No

Pinion Gear Teeth

11

Pinion Shaft Diameter (in)

1.970 in.

Pinion Spline Count

31

Quantity

Sold as a set.

Ring and Pinion Ratio

3.73:1

Ring Gear Bolts

12

Ring Gear Diameter (in)

9.750 in.

Ring Gear Rotation

Standard

Ring Gear Teeth

41

Tool

Transmission Lookup

Differential Case Design Type

Ford 9.75

Pinion Shaft Diameter

1.97

Ring Gear Tooth Quantity

41

Pinion Gear Tooth Quantity

11

Cover Bolt Quantity

12

Ring Gear Bolt Quantity

12

Ring Gear Material

8620 Steel

Ring and Pinion Gear Ratio

3.73

Ring Gear Diameter

9.75

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Position

Rear

Quick and easy

Got exactly what I ordered, fit 21 ft Triton very well, , arrival date kept changing do to weather

So far so good.....I can't believe the price on the tires I just ordered; almost too good to be true......

The part got here a day after I ordered it. It came in great condition & was pretty easy to install. Would 100% shop from autoplicity again!

GOOD PRICES,.....!!!

Excellent.

Good

So far So good!

Very good price

Found Autoplicity through price searching. Best price, easy to navigate site, quick service. Bookedmarked for future use!

Great price and fast shipping! Tech support helped me before the sale to make sure I was ordering the right part

Autoplicity got my air filters shipped next day after I placed my order. Cheap prices, and good customer is what they stand for. I will definitely be looking at their site in the future for my car needs. <br>

Great prices with fast shipping

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