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BMR differential hardware kit for 2015–2017 S550 Mustang (also noted for later S550/S650 Mustangs) upgrades failing or weak differential mounting hardware with Grade 12.9 fasteners specified by BMR for increased strength. These zinc-plated components are intended to prevent bending or failure under higher torque and help secure the differential to support harder launches and higher-power applications.
BMR 15-17 S550 Mustang Differential Hardware Upgrade Kit - Zinc plated
