Ford Performance Differential Traction-Lok 34-Spline 8.8" 2015-2023

Ford Performance:
100% of 100


  • Traction-Lok Super 8.8" Diff
  • For 34 Spline Axles
  • Requires Friction Modifier
  • For Super 8.8" Gear Sets
MSRP $230.00
You save 13%

Ford Performance 8.8" 34-Spline Traction-Lok Differential for all 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2023 Mustangs.

If you need a replacement for the differential on your 2015-2023 Mustang, you must pick up this 8.8" 34-Spline Traction-Lok Differential from Ford Performance. This is the factory OEM replacement that came on the standard 2015-2023 Mustang.

Features and Benefits:
- Direct Factory Replacement
- Designed to Fit an 8.8" Rear End
- For Use with 3.31, 3.55, 3.73 and 4.09 Super 8.8" Gear Sets
- Fits 34-Spline Axles
- Limited Slip
- Transfers 100% of Torque to each Rear Drive Wheel Concurrently
- Provides Increased Traction

This Traction-Lok Differential from Ford Performance (formerly Ford Racing) is a direct fit replacement on your S550 Mustang and will maintain the high-quality that Ford Racing has set. Designed to fit an 8.8" rear end, this differential is intended to be used with Ford Racing's 3.31, 3.55, 3.73 or 4.09 Super 8.8 Gear Sets. Accommodating 34-spline axles, Ford Performance manufactures this differential with limited slip. This will transfer 100% of torque to each rear wheel simultaneously, allowing both wheels to put the power down on the ground for increased traction and a better overall driving experience. Installing Ford Performance's traction-lok differential to your 2015-2023 Mustang will support a solid rear-end or new Independent Rear Suspension (IRS) installation.

Please Note: Installing this differential will require the use of 4-ounces of friction modifier with initial fill.

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Related Categories: Mustang Parts, Mustang Rear Axle, Mustang Differentials

Installation Videos

Video Transcript

We’re here with a factory replacement rear differential fitting your 2015 Mustang GT from Ford Racing.

This 34-spline differential is a factory replacement for the original differential found in the IRS 8.8 rear in your 2015 Mustang GT. It will only work in the IRS and it's designed for use with either 373s or 355s, which again using 2015-specific gears.

Ford Racing 355 and 373 gears designed to be used with this differential are available separately.

Vehicle Fitment

This product will fit the following Mustang years:

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