Another Prostar question...

[DynamicGN]

I am trying to order the weld prostars 15 x 8 to run 275/60/15 drag radials...from previous threads most guys are running a 4 inch backspace...however, when I called to order them I was told they only make them in 3.5 and 4.5...should I get the 4.5 and put a half inch spacer??
For the front, I am going to run 215/65/15 on 15x7 and a 3.5 inch backspace, I believe this backspace is correct, if i'm wrong let me know. Thanks

 

[DCVING 6]

The majority of people who run Weld wheels in 15x8 run 3.5" backspace. That's what I had on pro-stars and drag lites with the 275/60/15's and they fit like a glove.
Here is a picture on my old car:

 

[DynamicGN]

You are absolutely correct, I have no idea where I got 4 inch B/S from...anyways, thanks alot, I'll put in the order ASAP.

 

[Grumpy]

I run the 4 1/2s with a small spacer ... 3 1/2s rub ...

 

[1ARUNEM]

I had prostars with 3.5 bs and they didn't rub with 295/50/15's..