UPR IRS Subframe Short Alignment Kit Mustang 15-26
Highlights
- 4-Piece Alignment Kit
- Squares IRS Subframe
- No Added NVH
- CNC-Machined Delrin Spacers
UPR IRS Subframe Short Alignment Kit for 2015-2026 Mustangs.
Ensure proper rear suspension positioning on your 2015-2026 Mustang with this UPR IRS subframe short alignment kit. Designed to address the excess movement permitted by the factory independent rear suspension (IRS) subframe mounting holes, this kit helps keep the subframe properly squared to the chassis. The factory mounting holes feature generous clearances that can allow the IRS subframe to shift or become misaligned. UPR's precision CNC-machined Delrin spacers fill that excess clearance, providing more consistent subframe positioning and helping maintain proper alignment during suspension maintenance or modifications.
Features and Benefits:
- Designed for 2015-2026 Mustangs with independent rear suspension
- Short-length alignment kit designed for use with UPR Billet IRS Braces
- 4-piece kit provides IRS subframe alignment support
- Precision-machined spacers fill excess factory mounting hole clearance
- Helps square the IRS subframe to the vehicle chassis
- Reduces unwanted movement at IRS subframe mounting points
- Helps correct potential factory subframe misalignment
- Maintains consistent subframe positioning during suspension service
- Helps the IRS subframe return to its previous position after removal
- Improves rear suspension alignment consistency
- Designed to maintain ride comfort without adding NVH
- Compatible with UPR Billet IRS Brace applications
- Shortened spacer design accommodates compatible IRS reinforcement braces
- Suitable for suspension upgrades, maintenance, and performance builds
- Machined finish provides precise component fitment
- CNC-machined from durable Delrin material
- Made in the USA
The 4-piece kit features durable Delrin construction and a machined finish, delivering precise fitment without introducing additional noise, vibration, or harshness (NVH). Once installed, the spacers help ensure the IRS subframe returns to the same position whenever it is removed and reinstalled. Proudly made in the USA, this alignment kit provides a straightforward solution for maintaining proper IRS subframe positioning.
California Residents: Proposition 65 Warning
Related Categories: Mustang Bushings, Mustang Suspension Hardware
Installation Difficulty

Intermediate skill is required for this installation.













