Rhino-Rack Fitting Kits for 2500 Aero Crossbar Roof Racks are available in over 250 different shapes and sizes. Each Rhino Fitting Kit is vehicle specific. Consequently, only one fitting kit will fit your vehicle. Fitting Kits include rubber pads that sit between the 2500 Foot Pack and your vehicle roof. The pads are designed to fit the rounded contour of individual roofs. The included Rhino Clamps are unique to the door jamb configuration of your vehicle. The actual fit kit for your vehicle will differ slightly from the picture shown.