Wheel back spacing

[kilrcam]

Can any one tell me what backspacing i would need for either a 17x8 or 18x8 wheels on my 70 chevelle. Thanks in advance

Brad

[Vince@Meanstreets]

with carefull measurement you can easily get 9.5's in the rear and run a 275-285 tire.
For the 8's 4.75-5" should work fine. If you choose to go 9.5's in the rear then its 5.5". But please measure to be sure. Vin

[kilrcam]

Ok thank you very much

Brad

[awr68]

I thought a 315 on an 11" wheel would fit a 70-72 chevelle??

[USAZR1]

Originally Posted by awr68

I thought a 315 on an 11" wheel would fit a 70-72 chevelle??

Yes,it will fit.

[SS454]

Just ordered my wheels from Billet Specialties, GTX70's.
17x11 w/6"bs in back and 17x9 1/2 w/5.5bs in front, now all I've got to do is wait 4 or 5 weeks to see if I was right on the backspacing

[novajess1972]

Originally Posted by awr68

I thought a 315 on an 11" wheel would fit a 70-72 chevelle??

I know that we are talking about larger diameter wheels, but I had 15x10 gm rallys on my 70 Chevelle with 5.5in b/s and had not one rubbing issue. No suspension or fender lip mods. The tire was a 295/50-15. The cross section or width still translates whether it's a 15in or 20in.....the b/s is what you really have to pay close attention to.