J&M Rear Subframe Alignment Kit (25315) - 2015-2026 Mustang IRS
Eliminate one of the most common alignment issues found in the S550 and S650 Mustang IRS platform with the J&M Rear Subframe Alignment Kit. Designed for 2015-2026 Ford Mustang models equipped with independent rear suspension, this precision-engineered kit centers the rear subframe within the chassis and prevents unwanted movement caused by the factory oversized mounting holes.
From the factory, the rear subframe mounting holes allow a significant amount of movement during installation and service procedures. This can result in the subframe being positioned off-center, leading to alignment inconsistencies, suspension geometry changes, vehicle instability, and uneven tire wear. J&M's alignment bushings eliminate this issue by filling the excess space between the mounting bolts and subframe holes, ensuring precise subframe positioning every time.
Manufactured in the USA from lightweight, high-strength synthetic elastomer material, these centering bushings provide a simple and effective solution without requiring cutting, welding, or permanent modifications. The kit works with factory hardware and helps maintain proper suspension geometry whether you're servicing the rear suspension, upgrading components, or improving overall chassis consistency.
Features
- Designed for 2015-2026 Ford Mustang IRS applications
- Centers the rear subframe within the chassis
- Corrects factory subframe alignment issues
- Fills excess clearance between mounting holes and bolts
- Helps eliminate rear subframe shifting
- Manufactured from high-strength synthetic elastomer
- Lightweight and durable construction
- Retains factory mounting hardware
- No cutting, welding, or permanent modifications required
- Easy installation
- Made in the USA
- Backed by a lifetime warranty
Benefits
- Corrects rear subframe misalignment issues
- Helps prevent suspension geometry changes
- Maintains proper rear alignment after service work
- Reduces the possibility of uneven tire wear
- Improves chassis consistency and stability
- Ensures repeatable and accurate subframe positioning
- Ideal for street, drag racing, autocross, and road course applications
Fitment
- 2015 Ford Mustang IRS
- 2016 Ford Mustang IRS
- 2017 Ford Mustang IRS
- 2018 Ford Mustang IRS
- 2019 Ford Mustang IRS
- 2020 Ford Mustang IRS
- 2021 Ford Mustang IRS
- 2022 Ford Mustang IRS
- 2023 Ford Mustang IRS
- 2024 Ford Mustang IRS
- 2025 Ford Mustang IRS
- 2026 Ford Mustang IRS
Additional Notes
- Helps correct subframe misalignment of up to approximately 1/2 inch caused by oversized factory mounting holes.
- Recommended whenever the rear subframe is removed or serviced.
- Works with factory mounting hardware.
- Maintains proper suspension geometry and alignment consistency.
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