[b-man]

The stud length is dependent on the wheel and lug nut combination.

Wheels with thicker centers and long lug nuts need the 3” studs.

I had 3” studs all around on my bracket race 1964 GTO, I was running Centerline Auto Drag wheels. The wheel centers especially the front 3-1/2” wheels were thick and the open end lug nuts were long.

Having open end lug nuts is a must when running the 3” lug studs. When you’re going through tech inspection at the track having open end lug nuts makes things fast and easy for the inspector.