{"product_id":"eaton-detroit-truetrac-differential-09-23-ford-f-150-4x4-front-axle-31-spline-8-8in-all-ratios","title":"Eaton Detroit Truetrac Differential 09-23 Ford F-150 4x4 Front Axle 31 Spline 8.8in All Ratios","description":"\u003cp class=\"p1\"\u003eSKU: 917A738\u003c\/p\u003e\n\u003ch4 class=\"p1\"\u003e\u003cb\u003eEaton Detroit Truetrac Differential for 2009-2023 Ford F-150 4x4 Front Axle - 31 Spline, 8.8 Inch, All Ratios\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eThe 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.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eKey Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eDifferential Type\u003c\/b\u003e: Helical-gear limited-slip\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eRing Gear Size\u003c\/b\u003e: 8.8 inches\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eGear Spline Tooth Count\u003c\/b\u003e: 31\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eAxle Shaft Diameter\u003c\/b\u003e: 1.32 inches\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eGear Ratios\u003c\/b\u003e: All ratios compatible\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eCarrier Material\u003c\/b\u003e: Steel\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eLubrication\u003c\/b\u003e: Use only petroleum-mineral based GL-5 rated 80W-90 gear oil, avoid synthetics or friction modifiers\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eWeight\u003c\/b\u003e: 25 lbs\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Box Dimensions\u003c\/b\u003e: 8 x 8 x 8.5 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis differential fits the front axle of:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eYear\u003c\/b\u003e: 2009-2023\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMake\u003c\/b\u003e: Ford\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eModel\u003c\/b\u003e: F-150 4x4 (with 8.8-inch IFS axle, 31-spline axles, not compatible with OEM electronic locking differentials)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eConfirm your vehicle's axle configuration matches before installation for seamless compatibility.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat's Included in the Purchase\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e(1) Eaton Detroit Truetrac Differential Assembly (917A738)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eNote\u003c\/b\u003e: Carrier bearings are not included reuse existing or purchase separately as needed\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWith 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.\u003c\/p\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":43698773786703,"sku":"EAT917A738","price":803.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_917A738.jpg?v=1760646341","url":"https:\/\/www.blackopsautoworks.com\/products\/eaton-detroit-truetrac-differential-09-23-ford-f-150-4x4-front-axle-31-spline-8-8in-all-ratios","provider":"Black Ops Auto Works","version":"1.0","type":"link"}