Ford Performance Rear Pinion Flange 8.8" Automatic Transmission Kit Mustang V6 2015-2017/ EcoBoost/GT 2015-2022

Ford Performance:


  • Includes Pinion Drive Flange
  • Along With A Pinion Seal & Nut
  • And Also The Crush Sleeve
  • Comes W/Tube Of Thread Locker
MSRP $85.00
You save 6%

Ford Performance 8.8" Rear Pinion Flange Kit for 2015, 2016, and 2017 V6 Mustangs and 2015, 2016, 2017, 2018, 2019, 2020, 2021, and 2022 EcoBoost and GT Mustangs equipped with an Automatic Transmission.

If you are looking for a replacement pinion flange or entertaining the idea of upgrading your differential, then consider purchasing this 8.8" Rear Pinion Flange Kit (P/N: M-4851-M8A) from Ford Performance for your V6, EcoBoost or GT Mustang equipped with an Automatic Transmission.

Originally found on GT Mustangs with an automatic transmission, this can be used as a service replacement if needed. But the main purpose for CJ Pony Parts offering this part is so that customers looking to install P/N: M400188355 on their Automatic Transmission equipped 2015-2017 Mustang have a complete solution. That assembled differential housing comes equipped with a manual transmission pinion flange and is designed to be an upgrade for Automatic Mustangs owners. This kit will help facilitate that.

Included in Kit:
- (1) Pinion Drive Flange
- (1) Pinion Seal
- (1) Pinion Nut
- (1) Crush Sleeve
- (1) Tube of Thread Locking Compound

California Residents: Proposition 65 Warning

Installation Difficulty


Intermediate skill is required for this installation.

Installation Videos

Video Transcript

We’re here with a Ford performance pinion flange fitting your 2015 to 2017 Mustang Automatic. This pinion flange from Ford Performance can be used for a couple of different applications. Watch as this uses a direct replacement for a damaged pinion flange on your 2015 through 2017 Mustang with an automatic transmission. A more common use though is if you have a 2015 through 2017 auto and are converting to the cast iron differential from your factory cast aluminum, you buy the cast iron differential from Ford Performance, it comes with a pinion flange for a manual transmission and you have to convert over to an automatic before installing it. Again, this pinion flange is specifically for the automatic and will not work for the manual transmission.

Vehicle Fitment

This product will fit the following Mustang years:

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