UPR Products 2017-03 2015-2020 S550 Mustang Billet IRS Differential Insert Kit

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  • Regular price $71.99

As seen on Ash's 2016 Mustang GT. We needed some upgrades to get Ash's mustang down the 1/4 Mile track so we talked to UPR to get the job done.

UPR Billet IRS Differential Bushing Insert Kit for 2015-2019 Mustangs. 4 piece CNC Billet kit eliminates the movement the factory rubber bushings. The stock rubber bushings have voids to allow the differential to move around which translates to wheel hop under hard acceleration. By filling these voids it reduces wheel hop and improves overall handling of your car without adding any noise, vibration or harshness to the ride.

Made from 2024 Billet Aluminum instead of the standard 6061 that our competitors use adds strength to a critical part of the suspension. 2024 has a tensile strength of 68k psi compared to 45k psi or 51% stronger than 6061.

These give you the tightest cleanest install and fit to ensure your read end is locked solidly in place. Not just a round bushing smashed in like many others with no cutouts that completely destroys your factory rubber bushings!

Product Features

* 4pc Kit
* Improves Handling
* Reduces Wheel Hop
* Improves 60ft Times
* 45 Minute Installation
* Anodized & Machined Finish
* Includes Grade 10.9 Hardware
* CNC Machined from 2024 Billet Aluminum


Installs in 45 minutes. Includes Grade 10.9 Hardware.

Click Here for Instructions


2015 2016 2017 2018 2019 GT Ecoboost 2.3 V6 S550 Coyote 5.0.

No one else can stack up to the bold clean styling of our aftermarket Billet dress ups, Street Strip & Racing Suspension & Performance Parts for your late model American Muscle Car!