litch2004

iTrader: (1)

What size do i need to be legal on the track? I did not need spacers up front if this makes a difference. Not sure about the rears i havent received them from my buddy yet. He still has to remove his slicks off of the rims.
The rims are 15x3.5 and 15x10

monster81

u will need 12mm x 1.50 wheel studs, a good choice is ARP # 100-7708. not sur about ur wheels but with my Prostars i use shank style 12mm x 1.5 lug nuts

litch2004

iTrader: (1)

i have read that i have to have the open ended ones to run on the track. is this true? and if so what size length of studs do i need?

AChotrod

iTrader: (17)

Open ends are so tech can see aftermarket wheel studs. Mine are closed ended and no tech has said anything.

litch2004

iTrader: (1)

what size lugs did you go with?

AChotrod

iTrader: (17)

Same as above. I just grabbed some Cragar lugs from Pepboys since I needed them asap. I will eventually grab some better lugs, but havent had any probs and Ive driven a few hundred miles on the street with them.

litch2004

iTrader: (1)

what about the stud length?

BassProCamaro97

iTrader: (10)

You will need either 2.5 or 3.25 studs.

I had to run 3.25 studs to be legal with my Greg weld 3.5" wheels and no spacers. I also used an open lug.

The reason they ask for open lugs is to check that you have the correct amount of thread engagement. It also makes it easy to see if a lug is backing off. I suggest ARP 3.25 studs and whatever open lugs match your wheels.

~Jim~