UPR Billet IRS Differential Bushing Insert Kit for 2015-2026 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 2026 Billet Aluminum instead of the standard 6061 that our competitors use adds strength to a critical part of the suspension. 2026 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.
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 2026 Billet Aluminum
Installation:
Installs in 45 minutes. Includes Grade 10.9 Hardware.
