Ford Performance Loaded Differential Housing

At Ford, we’re committed to engineering the best performance vehicles possible. That commitment dates back to 1901 when Henry Ford and a small team of engineers developed a race car called “Sweepstakes”. It featured innovations such as mechanical fuel injection and insulated spark plugs – those breakthroughs helped Henry win the one and only race in which he ever competed. He used the notoriety - and winnings - of that win to start Ford Motor Company eventually.

That passion and ingenuity has powered wins from Daytona to Le Mans and from Indianapolis to Baja. Our success on the track has fueled the development of our cars on the road.

• Loaded differential housing for Mustang IRS
  
• Iron housing with aluminum cover
  
• Includes 3.55:1 ratio gear set M-4209-88355A and Traction-Lok differential M-4204-M 
  
• Custom calibration required for speedometer and shift corrections
  
• Original Equipment on 2019 Mustang GT   
  
• Note-on 2015-2017 Mustang, pinion flange change may be necessary; comes with pinion flange with 93mm bolt circle and 110mm driveshaft pilot installed. For applications that require 95mm bolt circle and 113mm driveshaft pilot, use FR3Z-4851-B pinion flange, available through Ford dealer