Spacers for Prostars

[03cobrazzz]

NHRA Stud, Lug Rule

get gt rotors and calippers and the problem is solved it doesent brake that good with the skinnies any how and you can get slotted and drilled rotors with a good pad to compensate.i will go with gt drilled and slotted rotors in the rear with some hawk drag pads for my warping issiue on the rear rortors.

[Dan]

Tony I did some measuring. With a 3/4" spacer and the long ARP studs you will have 1/4" thread engagement in the nut. The studs are 1/2" in diameter so this is 50% legal. LOL

Looks like a 1/2" spacer is what is needed to be legal.

too nbad that with the 1/2 in spacer most wheels will still hit the bobra brake system. I have and always will use the 3/4 spacer even bogart uses the same spacer the only diffrence is they are welded to the wheel

[BurnTire]

too nbad that with the 1/2 in spacer most wheels will still hit the bobra brake system. I have and always will use the 3/4 spacer even bogart uses the same spacer the only diffrence is they are welded to the wheel

The bogarts don't require the studs to go thru a bunch of the wheel like prostars. I wish weld had a thinner center section on the wheel.

[Ethan@S3M]

1" hubcentric spacers with ARP studs. You can see that the studs come out past the end of the shank.



Click on pic and then click on view full size on the upper right hand side.

[Ethan@S3M]

[BurnTire]

I just ordered a set of those bolt on spacers. I am going to knock the studs out and put ARPs in them.

[Ethan@S3M]

I just ordered a set of those bolt on spacers. I am going to knock the studs out and put ARPs in them.

Told ya I have a couple set in the garage.

[BurnTire]

Do you know what the knurl size is on the ARP's or did you have to drill the holes out some?

[Ethan@S3M]

I believe it was .625, Im not sure its been a while.

[Ethan@S3M]

They were 3.5in Arp studs and I bought them from Loper's. Or Bear has them locally for about 5 bucks apiece and they are local as well.