The Alcon 363x38 rear rotor for Ford F-250/F-350 is supplied as a left-hand replacement that increases brake torque and thermal capacity to help mitigate fade under load. Intended as a service rotor, it’s suitable for maintaining or upgrading rear braking performance on F-250 and F-350 models where the larger rotor dimensions are required.
Alcon F250/F350 363X38 Rear Rotor - Left Hand