The R1 Concepts drilled and slotted black brake rotor for 1979-1991 Ford LTD (front left) is a vehicle-specific replacement rotor intended for that wheel location. Its drilled-and-slotted face and black finish are the stated attributes for this application, supplied to restore the braking surface and to match the mounting and fit characteristics associated with the LTD models in the indicated years.
R1 79-91 Ford LTD Front Left Drilled & Slotted Black Brake Rotor