Ford Mustang S550 Quick Change Weld In Mount

This kit is designed to fit Ford Mustang S550 models (2015+).

It allows you to mount a Winters, Bulldog, or Speedtek quick change differential (Speedtek requires metric hardware), giving you a ton of flexibility when it comes to gearing and setup.

Beyond just mounting the diff, this kit was built to seriously strengthen the rear subframe wherever possible (and still stay within legal limits). It’s made from high-strength material with a 210,000 psi yield strength, compared to roughly 44,000 psi for mild steel. It’s built to handle abuse.

A solid option if you’re looking to run a quick change and add strength to the car at the same time.

Installation Manual

Why Choose FDF?

• Driver-inspired designs: Our products feature innovative, driver-inspired designs tailored for performance and style.
• High-quality materials: We use only high-strength alloys to ensure the durability and superior quality of our products.
• Made in North America: Our products are proudly made in-house in North America, ensuring exceptional craftsmanship and reliability.