Ford Performance Differential Traction-Lok 34-Spline 8.8" GT 2015-2017

Ford Performance: M-4204-M
MSRP: $199.00
CJ's Low Price:
$179.00
1480636800 60785
Pick up the friction modifier & installation kit that is required to be used with this differential.
CJ's Low Price:
$10.99
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Ford Performance Differential Traction-Lok 34-Spline 8.8" GT 2015-2017
Ford Performance Differential Traction-Lok 34-Spline 8.8" GT 2015-2017 Play Ford Performance Differential Traction-Lok 34-Spline 8.8" GT 2015-2017 Video 1
Ford Performance

Product Description

Ford Performance 8.8" 34-Spline Traction-Lok Differential for all 2015, 2016 and 2017 GT Mustangs.

If you need a replacement for the differential on your 2015-2017 GT 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 2015-2017 GT Mustang.

Features:
- Direct Factory Replacement
- Designed to Fit an 8.8" Rear End
- For Use with 3.55 & 3.73 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 3.55 or 3.73 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 2015-2017 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.

If you're looking for parts for your Mustang, you should start by looking at the huge selection of Mustang parts that CJ Pony Parts offers from Ford Performance (formerly Ford Racing). By buying your Ford Performance parts from CJ Pony Parts, you know you're getting your Mustang parts from a reliable, reputable dealer, since CJ Pony Parts is a Top 10 Ford Performance Dealer and has been for the last 10 years. When you buy your Ford Performance Mustang parts from CJ Pony Parts, you know you have a winning combination.

Pick up this Ford Performance 8.8" 34-Spline Traction-Lok Differential M-4204-M for your 2015-2017 GT Mustang from CJ Pony Parts today!

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

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Product Questions

Will this work in any 8.8 rearend? Foxbody, sn95, new edge?

Asked by: James7
No, only the 8.8" found in the 2015+ Mustang.
Answered by: CJPP Dave
Date published: 2016-09-23

i have a 2015 ford mustang gt with automatic 3.15 gear final . I want to switch to 3.55 . What are my options for the lowest cost ?

Asked by: 2015 convertible gt
This is your best option here: P/N: M400188355
Answered by: CJPP Dave
Date published: 2016-06-06

What is different about this than a Norman rearend?

Asked by: Slickmustang
This is the factory OEM replacement that came on the standard 2015-2016 GT Mustang.
Answered by: rk cjpp
Date published: 2016-01-07

I have a 2015 mustang gt 5.0 with 3.15 gears..I would like to upgrade to 3.73 gears..can I buy just the 3.73 gear set and be ok or will I need m-4204-m..is this m-4204-m standard on all 2015 mustang gts or just those with bigger gears?

Asked by: ramon01
3.73 Gears will NOT fit in the your housing even with this differential. Your rear end housing is totally different.
Answered by: CJPP Dave
Date published: 2015-12-04

Hello Sir, Actually I have a new mustang 2,3 ecoboost, automatic with 3,55 final drive. Could you please let me know which limited slip differential could you offer me? Many thanks, cheers Tomi

Asked by: Tomi
The only thing we offer at this time is part #M-4204-MT.
Answered by: rk cjpp
Date published: 2015-11-27

If I wanted to upgrade my 2015 mustang V6 with 3.15 gear to a 3.73, would this part fit? What's the difference between M-4204-MT? Is the only difference the amount of torque it can handle?

Asked by: subie227
This is not true. I have a 2015 v6 S550, and used this exact differential to get my 3.73 gears installed. Aftermarket calibration with a tuner is required. Hope that helps
Answered by: ktodd818
Date published: 2016-06-01
  • 2016-12-02T08:02CST
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Product Video

Ford Performance Differential Traction-Lok 34-Spline 8.8" GT 2015-2017 Video Transcript
By Bill Tumas: 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.