Only Fits Models With 98.6 Inch Bed Length & 172.4 Inch Wheelbase Only Fits 4WD 4-Wheel Drive Crew Cab (4-Full Size Doors) Models Only Fits Models With 6.0L V8 Diesel & Automatic Transmission Replaces 3C3Z-4R602-BCX, 3C3Z4R602BC, 3C3Z4R602BCX All Options Listed Must Match Your Vehicle Or This Will N...