Steeda Rear Differential Adjustable Bushing Insert System Urethane 2015-2021

99% of 100


  • Increases Traction
  • Limits IRS Movement
  • 80 & 90 Durometer Bushings
  • No Increase In NVH
MSRP $139.95
You save 29%

Steeda Urethane Adjustable Bushing Insert System for the Rear Differential of all 2015, 2016, 2017, 2018, 2019, 2020 and 2021 Mustangs.

Steeda has once again taken the S550 Mustang to the next level of performance and comfort with their Adjustable Urethane Differential Mount Bushing Insert System. When Steeda’s engineers sat down to design this kit, their goal was to come up with a way to increase performance without sacrificing an ounce of drivability all while keeping the car quiet!

And they have succeeded in that. You know have the ability to minimize pinion angle changes, noticeably increase traction, and help eliminate wheel hop and differential deflection with this new kit. Made from high-strength urethane to Steeda’s exact specifications and durometers, this kit will arrive with 2 different bushing options. The red “Street” 80 durometer bushings and a black “Performance” 90 durometer bushings. Both bushing options will increase performance with no increase in NVH (Noise, Vibration and Harshness).

Features and Benefits:
- Limits IRS Differential Movement
- Significant Increase in Traction
- Helps with Eliminating Wheel Hop
- No Increase in NVH (Noise, Vibration and Harshness)
- Easily Removable, Not a Permanent Modification
- Includes 80 and 90 Durometer Bushings
- Installs in 1 Hour or Less
- Made In The USA

Please Note: This system is designed to work with 2015-2021 Mustangs ONLY.

California Residents: Proposition 65 Warning

Installation Difficulty


Intermediate skill is required for this installation.

Installation Videos

Vehicle Fitment

This product will fit the following Mustang years:

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