What backspace for 15 x 8 rally wheel for 1969 - Team Camaro Tech
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post #1 of 7 (permalink) Old Apr 14th, 13, 03:27 PM Thread Starter
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Chet
 
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What backspace for 15 x 8 rally wheel for 1969

Probably been asked a hundred times but can't find. I have stock height springs in front of my "69 with a small block. I plan on lowering it one inch at most. I currently have 15 X 8 corvette rallys all the way around. Backs are fine. In front I have a 245/60/15R and am getting rubbing. Not sure exactly where but it rubs. Would like to keep the the 245's. Will I be alright getting a rally with 4.25 backspacing or do I need to go to 4.5? Can drop a tire size too if needed. Thanks for your answers.
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post #2 of 7 (permalink) Old Apr 15th, 13, 05:53 AM
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Re: What backspace for 15 x 8 rally wheel for 1969

Chet....

The 245 fronts are too wide and will rub inside and out. I run 225 on the front with 4.25 bs and they rub slightly on hard bumps and hard turns.


Kev
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post #3 of 7 (permalink) Old Apr 15th, 13, 06:24 AM Thread Starter
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Re: What backspace for 15 x 8 rally wheel for 1969

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Originally Posted by SixtyAte View Post
Chet....

The 245 fronts are too wide and will rub inside and out. I run 225 on the front with 4.25 bs and they rub slightly on hard bumps and hard turns.


Kev
Kevin,
How different are the wheel wells from a 1969 to the 1968 (I assume) that you have? I am thinking that I might have to go with a 4.5 backspace and 225/60R15 or 235/60R15. Would love it if the 245/60R15 I have would work with a 4.5 backspace wheel. Anybody with a 69 running that?
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post #4 of 7 (permalink) Old Apr 15th, 13, 03:20 PM
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Re: What backspace for 15 x 8 rally wheel for 1969

4.5 b.s. worked great on my rear w/15x8,255/60/15. I tried a 4.5 b.s. 15x7 on the front and the rim would grind on my tie rod ends just barely. I had to go to 4.25 front b.s. I like the 215/65/15 on the front. This is on a stock height '69

'69 Camaro, w/'67 L30 327 .030, L79 cam, 700DP, M20, 3.73 12 Bolt
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post #5 of 7 (permalink) Old Apr 15th, 13, 07:38 PM Thread Starter
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Re: What backspace for 15 x 8 rally wheel for 1969

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Originally Posted by L30 327 View Post
4.5 b.s. worked great on my rear w/15x8,255/60/15. I tried a 4.5 b.s. 15x7 on the front and the rim would grind on my tie rod ends just barely. I had to go to 4.25 front b.s. I like the 215/65/15 on the front. This is on a stock height '69
Wow. This is going to take some sciencing out. Thanks for your input.
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post #6 of 7 (permalink) Old Apr 16th, 13, 05:22 AM
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Re: What backspace for 15 x 8 rally wheel for 1969

Chet,
Since I was just looking into about the same (but 15x7's), ...I found this thread had some good info too...

https://www.camaros.net/forums/showth...=175230&page=4

Kevin


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post #7 of 7 (permalink) Old Apr 16th, 13, 06:49 AM Thread Starter
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Re: What backspace for 15 x 8 rally wheel for 1969

Thanks, Kevin. I saw that thread before and it was mostly 67's and 68's. Think I'll pm steiner to see if he's got more pics of his setup.
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