So I picked up these nice 16 inch s15 Racing Hart's and have had a crazy time trying to get them on. The lug holes fit, but I can't get a socket in to turn the lugs. I went and bought a thin walled socket and it still was too tight. Im thinking I need some special socket but am at a loss about it. Any ideas???

 

You might need star lugs, they come with a socket. For them, I'd take it to a tire shop and see if they have something,