Backspacing for new wheels

[ascates]

I'm looking to buy some new wheels for my '84, probably 15x7 Cragars. How much backspacing will I need?

 

[crucial118]

Around 4.5" without spacers

 

[DoubleV]

The stock backspacing on the 15x7 442/HO G-body wheels are 4".

 

[Blake442]

4.5 is too much...

3.5"-4" fits best.

 

[pontiacgp]

4.5 is too much...

3.5"-4" fits best.

x2

 

[ascates]

Thanks, 4" was what I was thinking.

 

[ascates]

I found this video on youtube the other day.

http://www.youtube.com/watch?v=H4p2TdOO ... ture=feedf

I don't who the cutlass belongs to, it might be a forum member, but anyway I really like the way it looks and the Cragar wheels that are on it. I looked through all the comments but could not find the dimensions of the tires and wheels. I was wondering what you guys think they are? 14" or 15"? They look staggered, because the rear tires are huge! I think the tires are BF Goodrich Radial T/As.

 

[Randy_W]

They could be 15 x 10/8, but they look like reverse wheels that are 15 x 8/7. That's one damn good looking Cutlass!! 8)

 

[ascates]

If I decided to go with 15x8 on the rear, would I stick with the 4" backspacing or 4.250" that Cragar offers?

And if I dare run 15x10, would 4.250" or 3.750" backspacing work?

 

[Blake442]

4.5 is too much...

3.5"-4" fits best.

x2