-8%
Eaton Truetrac 917A738 Ford F-150 8.8" Front Differential 09-23 - Unmounted
Eaton Truetrac 917A738 Ford F-150 8.8" Front Differential 09-23
Eaton Truetrac 917A738 Ford F-150 8.8" Front Differential 09-23 - Unmounted
Click to zoom in

Eaton Detroit Truetrac Differential 09-23 Ford F-150 4x4 Front Axle 31 Spline 8.8in All Ratios

Eaton
EAT917A738
Differentials
20+ Units In Stock - Ships Next Business Day
$ 873.91 $ 803.99
$ 803.99

SKU: 917A738

Eaton Detroit Truetrac Differential for 2009-2023 Ford F-150 4x4 Front Axle - 31 Spline, 8.8 Inch, All Ratios

The Eaton Detroit Truetrac Differential (Part Number: 917A738), a helical-gear limited-slip unit designed specifically for the front 8.8-inch independent front suspension (IFS) axle. This differential delivers consistent torque distribution to both wheels, ensuring reliable power transfer during acceleration, cornering, and low-traction scenarios like off-road trails, snow-covered roads, or heavy towing. Unlike traditional open differentials that send power to the wheel with the least resistance, the Truetrac's gear-based system automatically biases torque up to 5:1 to the wheel with grip, reducing wheel spin and maintaining forward momentum without the chatter or wear associated with clutch-type units. Built with durable steel construction and precision-machined helical gears, it operates quietly and requires no maintenance, making it a dependable addition for daily drivers and enthusiasts who demand traction without compromise.

Key Specifications

  • Differential Type: Helical-gear limited-slip
  • Ring Gear Size: 8.8 inches
  • Gear Spline Tooth Count: 31
  • Axle Shaft Diameter: 1.32 inches
  • Gear Ratios: All ratios compatible
  • Carrier Material: Steel
  • Lubrication: Use only petroleum-mineral based GL-5 rated 80W-90 gear oil, avoid synthetics or friction modifiers
  • Weight: 25 lbs
  • Shipping Box Dimensions: 8 x 8 x 8.5 inches

Vehicle Fitment

This differential fits the front axle of:

  • Year: 2009-2023
  • Make: Ford
  • Model: F-150 4x4 (with 8.8-inch IFS axle, 31-spline axles, not compatible with OEM electronic locking differentials)

Confirm your vehicle's axle configuration matches before installation for seamless compatibility.

What's Included in the Purchase

  • (1) Eaton Detroit Truetrac Differential Assembly (917A738)

Note: Carrier bearings are not included reuse existing or purchase separately as needed

With its proven ability to handle demanding conditions while preserving tire life and vehicle stability, the Eaton Detroit Truetrac 917A738 stands as the practical solution for Ford F-150 owners seeking enhanced traction and control. Backed by a limited lifetime warranty, it installs directly into your factory housing for a straightforward upgrade that pays off in every drive.

Request For Information

Have questions about Eaton Detroit Truetrac Differential 09-23 Ford F-150 4x4 Front Axle 31 Spline 8.8in All Ratios? Fill out the form below and we'll get back to you by the next business day.
Differentials

Differentials

Performance differentials, limited-slip differentials, locking differentials, and traction upgrades are stocked at Black Ops Auto Works. Shop clutch-type LSDs, helical gear LSDs, automatic lockers, selectable air lockers, electronic lockers, spool-style race components, differential carriers, truck and Jeep lockers, import performance LSDs, and axle-specific units for Subaru WRX and STI, Nissan Z and Skyline, BMW M, Mazda Miata, Porsche, Ford 8.8, Dana axles, GM trucks, Ram trucks, and off-road builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 235 differential SKUs across limited-slip designs, locking systems, axle spline counts, carrier cases, street and track traction upgrades, off-road configurations, and drivetrain-specific fitment. What This Differential Collection Covers A differential splits torque between driven wheels while allowing different wheel speeds through ...

View Differentials Products
Differentials & Components

Differentials & Components

Differentials and components at Black Ops Auto Works include diff braces, diff covers, rebuild and overhaul kits, differential bushings and mounts, limited-slip differentials, yokes, and final drive gears built for street, towing, off-road, and racing applications. Black Ops Auto Works carries 1,332 drivetrain SKUs from Yukon Gear and Axle, ARB, OS Giken, SuperPro, and Per4mance Development, spanning Hellcat and Trackhawk platforms, trucks, Jeep Wrangler, and sport compacts. What This Collection Covers This collection combines fifteen related differential and drivetrain categories, including diff braces, diff covers and gaskets, rebuild and overhaul kits, install kits, seal kits, bushings, mounts, housings, dropouts, spider gears, yokes, complete differentials, and final drive gears. Product Types in This Collection Shoppers will find billet differential braces for high-horsepower RWD platforms, nodular iron and aluminum diff covers, master overhaul kits, differential-to-cradle ...

View Differentials & Components Products
Drivetrain

Drivetrain

Drivetrain parts for high-horsepower Mopar, truck, Jeep, and import platforms are stocked at Black Ops Auto Works. Shop differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, and driveline hardware for Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and turbocharged import platforms. Every drivetrain part is filterable by vehicle platform, drivetrain layout, transmission type, and power level so the correct part ships the first time. Black Ops Auto Works carries 4,765 drivetrain SKUs across differentials, axles, clutches, and transmission hardware. What This Category Covers The drivetrain transfers power from the engine to the wheels and includes the transmission, clutch, driveshafts, axles, differentials, ring and pinion gears, wheel hubs, wheel bearings, U-joints, shifters, mounts, and bushings. Upgrading these components improves power delivery, durability, and reliability under incr...

View Drivetrain Products
Eaton

Eaton

Eaton differentials and elocker kits for trucks, Jeeps, off-road SUVs and performance cars are stocked at Black Ops Auto Works. Shop Detroit Truetrac limited-slip differentials, Detroit Lockers, ELocker selectable lockers, service parts and master install kits for popular Ford, GM, Jeep and Toyota axles. Differential selection depends on the axle model, ring-gear size, axle-spline count, gear-ratio range and intended driving use. Black Ops Auto Works carries 101 Eaton SKUs with catalog details to support correct axle and vehicle matching. What This Collection Covers Eaton is a leading source for traction upgrades across street, off-road, towing and performance applications. The collection centers on Truetrac helical limited-slip units, Detroit mechanical lockers, ELocker selectable lockers and the installation hardware needed for axle builds. Built for verified applications Use the fitment details and product specifications on each listing to confirm the correct application befo...

View Eaton Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×