On the left is a detailed Stillen Sport Rotor for the '91-'96 Dakota, on the right is the front rotor for a '97-and-later Dakota. With the redesign in '97, the Dakota got a non-serviceable, one piece front hub assembly, facilitating a rotor that looks like a traditional rear rotor. The rotor on the left retains the factory spindle bearing races and seals, etc. for the '96-and older Dakotas. For that kit, you'll have to supply new seals, and bearings if you need them.