2015-2025 Ford F150 8.8in Eaton Detroit TrueTrac Rear Limited Slip Differential 34 Spline, 3.31 & Up | 917A739

F150 8.8" Eaton Detroit TrueTrac Rear Differential Features:

• Greatly improves rear-end traction and handling
• Limited Slip design distributes power to both wheels evenly
• Extremely fast engagement
• Drop-in replacement for stock differential
• Beneficial for off-road environments
• For F150s with 34-spline 8.8" C-clip rear-ends only
• Designed to work with gear ratios 3.31 & Up

Improved Rear-End Traction for Challenging Conditions

One of the biggest obstacles that comes with off-roading in the 2015-2025 F150 is the loss of rear-end traction in challenging conditions. Luckily for you, Eaton has the solution with their Detroit TrueTrac Rear Limited Slip Differential. This limited-slip differential offers the best of both worlds in terms of on-road ride quality and off-road capability, granting you with more versatility on every adventure. The Limited-Slip operation automatically engages during wheel slip on the rear axle, retaining as much traction as possible for the wheel making contact with the ground. This means your ride will maintain more stability through wet and icy conditions, up steep inclines, and over uneven terrain. During normal driving, the Limited-Slip operates like an open or stock differential to keep your ride smooth and steady on paved roads. This is particularly advantageous for truck's that partake in various applications, allowing you to enjoy the enhanced traction that comes with a full locking differential along with the comfort and flexibility provided by an open differential.

Automatic Engagement with Maintenance-Free Design

Eaton carefully crafted their Detroit TrueTrac Limited Slip Differential to handle just about anything you have in mind. What makes the TrueTrac unique is it's high-strength body paired with the precision-cut helical gears that come pre-assembled to drop directly in place of your F150's stock differential. The helical gear-style internal design allows for more longevity and reliability over other Limited Slip systems that use more basic clutch packs. What's more, the TrueTrac ensures smooth and quiet operation when engaged, providing your truck with more traction without a ton of complications or hassles. Each TrueTrac has no wearable parts and requires absolutely no maintenance other than standard differential fluid changes.

Vehicle Fitment: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Ford F150

Specifications:

• Axle Model: Ford 8.8" C-Clip
• Ring Gear Diameter: 8.8"
• Axle Shaft Diameter: 1.36"
• Spline: 34
• Gear Ratio: 3.31 & Up

Application Note: A quality, petroleum-mineral based, GL5 rated 80w-90 gear oil should be used. Synthetic oils and/or Friction modifiers should not be used.