The R1 Concepts Geo-Carbon drilled and slotted brake rotor for 1999–2004 Ford Expedition (front left) is a single replacement rotor specified for the front left position. It is identified by the Geo-Carbon name and a drilled-and-slotted surface pattern in the product title and intended for service replacement on the listed Expedition model years.
R1 99-04 Ford Expedition Front Left Drilled & Slotted Geo-Carbon Rotor