Wheels & Tires - Lug Nuts

! bought a set of Weld Stars R/T and it states 5/8 studs
fits these wheels.I have a S60 rearend With 40 spline axels
which comes with 5/8 studs The wheels fit fine But when i
put a 5/8 lug nut on I can not get a 1in socket to fit down
into the hole.Anybody ever run into this problem.

Yea, you will definately need a thin-wall socket. No heavy-duty or impact socket will fit. Search around a little at different brand sockets, you will find one that fits.