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Diagnostic trouble codes (DTCs) such as C1200, C1210, and C1220 are commonly associated with suspension/chassis faults. In many Ford and Mazda-based platforms, a C1200 code can indicate a problem in the ABS or traction-control circuit rather than a mechanical strut failure; C1210 and C1220 may point to steering-angle or suspension-position sensor inconsistencies. Always consult the exact service information for the vehicle before replacing parts.For the 2026 Ford Mustang S650, the front and rear suspension designs emphasize lower unsprung mass. Aluminum strut housings, forged aluminum knuckles, and composite spring seats help reduce weight and improve damping response. These lightweight components require proper corrosion-resistant fasteners and precise torque-to-yield procedures. Aftermarket struts should be validated to OEM dimensions and to quality-management standards such as IATF 16949.On older models, such as the 2005-2010 S197 Mustang, the OEM strut assembly for many V6 and GT trims is referenced as 9R3Z-18124. Replacing the strut typically involves removing the top strut nut, the strut-to-knuckle bolts, and the stabilizer end-link. Common torque values include approximately 100 lb-ft for the strut-to-knuckle pinch bolt and 25-35 lb-ft for the top nuts, but verify the year/model-specific chart before tightening. After any suspension work, clear DTCs, perform a wheel alignment, and recheck ride height and steering-wheel centering.