EATON DETROIT TRUETRAC Limited Slip Diff. (9.75" 34-Spline) - 2011-2025 F150

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DESCRIPTION DESCRIPTION: The Detroit Truetrac is a helicalgear style limited-slip differential that maximizes wheel traction and enhances driving and handling characteristics. Its versatility make the Detroit Truetrac the ideal traction solution for almost any type of vehicle. 2011-2025 F150s only: this differential only fits Ford 9.75″ rear ends with 34-spline axles. Will not fit SVT Raptors: this locker will not fit SVT Raptors, due to the fact that Raptors have 35-spline axles. ***Will not fit F150’s with the HD max tow package! 9.75C as they have 35-spline axles. DETAILS DETAILS: Eaton recommends a petroleum/mineral based GL-5 80W90 gear oil for all Truetrac differentials. Do not use synthetic gear oil or friction modifiers. Helical-style pinion gears Limited-slip operation Smooth and automatic engagement – no driver action needed Parts are maintenance free meaning more time on the road Validated performance and durability Greatly improves rear end traction and handling Near-instant engagement Does not require friction modifier or clutch replacement Drop-in replacement for stock differential For F150s with 34-spline 9.75" rear ends only Show more