The Pacer spindle is a modular design which allows the spindle to interchange from left to right by flipping the steering arm. Spindle features a 7° pin inclination and 1-1/2" per foot upper ball joint taper. Spindle also uses the same spindle pin as the Mustang® II/Pinto which accepts Hybrid style 10-1/8" rotors. Caliper bracket for GM® metric caliper/Hybrid 10-1/8" rotor is sold separately.