Appliance, Western, Shelby, Anson, and Cragar were large companies in the USA that manufactured wheels (including 5-slots sized for 240z's) IN the USA, mostly in CA, which was where the the aftermarket wheel industy was centered for a variety of reasons back in the 70's. There may have been others that I don't know of. I'll take Alan at his word since I know nothing of Japans wheel production capabilities. However, in the decade of the 70's, the USA (also?) became an aluminum wheel producing powerhouse. The above mentioned companies had manufacturing plants in Southern CA, and in addition to their own brands, could be contracted to produce private label wheels for retailers such as "Wholesale Distributors" or "WD" which was a large chain of Tire/Wheel/Speed Equipment Stores throughout the West Coast (USA).