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High Performance Parts for Gear Heads with Passion, Like Us.


2015-2019 Mustang Super 8.8″ IRS Loaded Differential Housing 3.55

  • 8.8″ Independent Rear Suspension Differential Assembly
  • Traction-Lok
  • 3.55:1 Gear Ratio
  • Fits 15-20 Ford Mustang


All Aluminum Housing -Add $600

Rear Brake Kit M-2300-MR -Add $525


Features a cast iron housing with an aluminum cover and pinion flange with a 93mm bolt circle and 110mm driveshaft pilot bearing. Original equipment on 2019 Mustang GT. Custom calibration required for speedometer and shift corrections.

Ford Performance Parts 8.8 IRS loaded differential housings are improvements to the rear axle of your Mustang. Whether you’re replacing the original in your manual or strengthening the cast aluminum model in your automatic, there’s nothing better than Ford Performance differential housings to do the job perfectly. Besides, who knows your Mustang better than the maker? These 8.8 IRS housings are fully loaded with forged, and CNC-cut gear sets installed. They feature strong cast iron housings with an aluminum differential cover, and depending on the application, a Torsen or Traction-Lok differential is included. If your automatic sees a lot of track time or your manual has a broken housing, your only choice should be a genuine Ford Performance 8.8 IRS loaded differential housings.

Weight 100 lbs

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