Spend the extra money and get the GTA lugs for your GNX replica rims. Torque them to 80-85 ft-ibs. Was told that when I talked with the tech guy at Classic Industries. They GTA's lugs have a nice oval backing to them to seat into the rim properly. I tried the stock GN lug nuts and the corners of the lug started to dig into the rim when I tightened. Just my .02
Mike Banas
87GN