Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

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Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

$441.61 USD

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Brand : Motive Gear

Motive Gear F890478 differential ring and pinion fits Ford 9" axle with a 4.78 gear ratio.

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Products	Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478. View Detail
Type	Differential Rings & Pinions
Title	Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.
Price	Regular price $441.61 USD Unit price ( per )
Vendor	Motive Gear
Description	Motive Gear, a division of Midwest Truck and Auto Parts, offers the highest quality drivetrain components on the market today.With a broader line of ring and pinion gears than any other aftermarket manufacturer, Motive Gear is the number one choice for distributors worldwide.More than just differential bearing kits and ring and pinion gears, Motive Gear offers a complete line of transmission parts and transfer case parts as well as replacement axle shafts.Along with Motive Gear's divisions for performance and axles; Motive Gear Performance and TEN Factory, there simply isn't a better value in drivetrain components.

More about this item : Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

Motive Gear, a division of Midwest Truck and Auto Parts, offers the highest quality drivetrain components on the market today.

With a broader line of ring and pinion gears than any other aftermarket manufacturer, Motive Gear is the number one choice for distributors worldwide.

More than just differential bearing kits and ring and pinion gears, Motive Gear offers a complete line of transmission parts and transfer case parts as well as replacement axle shafts.

Along with Motive Gear's divisions for performance and axles; Motive Gear Performance and TEN Factory, there simply isn't a better value in drivetrain components.

Key Features

4.78 gear ratio for Ford 9" differentials with 9-tooth pinion and 43-tooth ring gear; ideal for drag racing, off-road, or performance street builds
Built from premium 8620 steel for maximum strength and durability; includes 1.313-inch pinion shaft and 28-spline count for consistent torque delivery
Standard rotation gear set for rear applications; designed for 10 ring gear bolts and fits Ford 9” dropout-style carriers
Includes precision-machined ring gear and pinion gear; installation kit not included—backed by Motive Gear’s performance engineering
Compatible with a range of 1955–1986 Ford, Lincoln, and Mercury models including Mustang, Bronco, Ranchero, Fairlane, Torino, Cougar, and more
Replaces part numbers F890478AX and M4209B478

Technical Specifications

Length : 15.0 lb
Width : 11.0 lb
Height : 5.25 lb
Weight : 19.4 lb

Product Identifiers

ASIN B00ITV6F3S
UPC: 698231226933

Shipping Information

Ships From : United States
Brand : Motive Gear

Frequently Asked Questions About : Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

01 What is the gear ratio of the Motive Gear F890478?

The gear ratio is 4.78.

02 What models are compatible with the Motive Gear F890478?

It fits Ford, Lincoln, and Mercury models from 1955 to 1986.

03 What type of steel is used in the Motive Gear F890478?

It is built from premium 8620 steel.

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Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

Discover quality parts and accessories for every adventure

Product Comparison We Made Easy For You

More about this item : Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

Frequently Asked Questions About : Differential Ring & Pinion, Motive Gear F890478, For Ford 9" Axle, Gear Ratio: 4.78, 10-Bolt, 28 Spline, 9 Pinion & 43 Ring Tooth - Fits Ford/Mercury/Lincoln 1955–1986, Replaces F890478AX, M4209B478.

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