ARP NASCAR Wheel Stud Kit - Extra Long Rear - 5/8"-18 Thread - 3.600" Under Head Length - 0.660" Knurl Diameter - 1.550" Knurl Length R07C15W40 There are many different tools

There are many different tools that can be used for measurement

Triple 450 Phantom

Start with a 1/4" center hole and use the fixture to locate and drill 1/8" holes for mounting the springs

This system will fit virtually any tank from 6" deep to 11" deep

ARP NASCAR Wheel Stud Kit - Extra Long Rear - 5/8"-18 Thread - 3.600" Under Head Length - 0.660" Knurl Diameter - 1.550" Knurl Length R07C15W40 There are many different toolsTough enough for use in NASCAR with J form threads, exclusive longer than standard nut starter, and a bullet shaped radius to help eliminate cross threading. Studs are shot peened with a special baked on dry lube, and are double magnafluxed. Rated at 190, 000 psi tensile strength. The finest wheel studs available! All applications fit Stock Car Products and Speedway Engineering hubs (and others). ARPs product line contains thousands of part numbers,