REAR BRAKE KIT WITH ALUMINUM HATS, 4 PISTON WILWOOD CALIPERS, PADS, BRACKETS, ROTOR & CALIPER BOLTS AND CHOICE OF ALUMINUM OR STEEL .380 ROTORS. PLEASE SPECIFY STEEL OR ALUMINUM ROTORS & MAKE OF REAR END, BOLT PATTERN, & STUD SIZE IN THE COMMENTS SECTION WHEN ORDERING.