These forged wheels place the highest material strength in the same direction as the operating load, creating a light and strong wheel Feature a contour lip design for a graceful arc from spoke to tire Made in the U.S.A. by Performance Machine Models with TPMS (Tire Pressure Monitoring System) will require Part # 0360-0056 (sold separately). For matching pulleys and rotors see TRANSMISSION & DRIVELINE and BRAKES sections.. BARNETT CLUTCH SPRINGS