Steeda Mustang IRS Subframe Alignment Kit
CNC-machined Delrin sleeves fill the clearance between the rear subframe bolts and mounting holes. The original clearance can allow approximately half an inch of sideways misalignment. The sleeves centre the subframe and return it to the same location after subsequent removal.
Delrin is lightweight and avoids a dissimilar-metal contact. Steeda reports no additional noise or vibration. Installation uses the existing hardware without permanent modifications. Wheel alignment is required after the initial installation because the original subframe position may have been incorrect.
Instructions and videos
Fitment and related parts
S550 Mustang 2015–2023 including GT, Bullitt, Mach 1, GT350 and GT500, plus S650 2024-on including GT and Dark Horse. Steeda lists European ECE approval. Cars using BMR CB005 require the separate compatible alignment kit. Installing springs and bushing supports at the same time can avoid repeating the alignment work.
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