2024-2026
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 4 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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Find Limited Slip Differentials for your Mustang
Ford Performance Traction-LOK Limited Slip IRS Differential; 34-Spline 8.8-Inch (15-26 Mustang, Excluding GT350 & GT500)Find parts that fit my vehicle
Item 388769
Our Price
$229.94 each
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Frequently Bought Together
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- _x000D_
- Fits 2015-2026 Mustang GT, V6, and I4 with 3.31, 3.55, 3.73, and 4.09 gear ratios only _x000D_
- Traction-Lok Super 8.8-Inch Differential _x000D_
- Fits 34-Spline Axles _x000D_
- Requires 4 ounces of CM-19546-A1 friction modifier with initial fill _x000D_
- For use with specified Super 8.8 gear sets _x000D_
- Use differential install kit for proper setup and secure mounting _x000D_
- Fits 2015-2026 Mustang, excluding GT350 and GT500 models _x000D_
| Brand | Ford Performance |
| Axle Spline Count | 34-Spline |
| Differential Ring Gear Size | 8.8 Inch |
Description
_x000D__x000D_
Precision Limited Slip. The Ford Performance Traction-LOK Limited Slip IRS Differential; 34-Spline 8.8-Inch enhances traction by distributing power evenly to both rear wheels during acceleration. This differential significantly improves handling and stability across a variety of driving conditions, including high-performance and everyday use scenarios. It replaces the factory differential to provide superior grip and performance for enthusiasts seeking enhanced rear axle control.
_x000D__x000D_Construction and Appearance. Constructed with high-quality forged and machined components, this differential is designed for durability and reliable operation. It is built to exact specifications to ensure seamless fitment and optimal function within the IRS setup. The unit features a natural metallic finish with visible precision machining marks, reflective of its robust build quality.
_x000D__x000D_Installation. Installation requires mechanical knowledge of differential assembly. Although no drilling is necessary, it is recommended to use the specified install kit to ensure proper installation and secure mounting.
_x000D__x000D_Warranty. This differential includes a manufacturer’s warranty covering defects in materials and workmanship.
_x000D__x000D_Application. Specifically designed for 2015-2026 Mustang models, excluding GT350 and GT500 variants, to ensure compatibility with selected gear ratios and axle specifications.
Ford Performance M-4204-M
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) IRS Limited Slip Differential
4.9
Customer Reviews (119)
Questions & Answers (17)
Will It Fit My Mustang
- Bullitt - 19, 20
- Dark Horse - 24, 25, 26
- Dark Horse Premium - 24
- EcoBoost - 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26
- EcoBoost Premium - 26
- GT - 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26
- GT Premium - 26
- GT350 - 15, 16, 17, 18, 19, 20
- GT350R - 15, 16, 17, 18, 19, 20
- GT500 - 20, 21, 22
- Mach 1 - 21, 22, 23
- V6 - 15, 16, 17
