rear tire clearance to leaf springs - Team Camaro Tech
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post #1 of 8 (permalink) Old Sep 5th, 10, 03:17 PM Thread Starter
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Mike
 
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rear tire clearance to leaf springs

Guys,

What is the absolute minimum rear tire clearance to the leaf springs I can get away with?

This is on my 69 with mutileaf springs, an old school minitub up to the frame rails, and relocated the shocks to the inside. With my current wheel and tire combo I'm looking at just 3/8" clearance to the springs. Is there really much side to side movement at that area that they would ever touch?

If I had to move the springs in, can you move the springs in any at all with the stock fuel tank?

Thanks, Mike
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post #2 of 8 (permalink) Old Sep 5th, 10, 08:40 PM
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Re: rear tire clearance to leaf springs

Personally, I think that you will be alright with 3/8". I think I had about a 1/4" with my last set-up and had no issues. Maybe someone else will chime in...

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post #3 of 8 (permalink) Old Sep 6th, 10, 04:30 AM
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Re: rear tire clearance to leaf springs

Side-to-side movement, I would think, depends upon sidewall stiffness. With lower sidewall ratios offered today, I agree and don't think it would be a problem as with a 75 ratio.

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post #4 of 8 (permalink) Old Sep 6th, 10, 10:58 AM
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Re: rear tire clearance to leaf springs

I don't believe you a have tire to spring clearance issue, especially with a rear sway bar; but might be very tight installing Tail Pipes if you plan on Dual Exhaust.

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post #5 of 8 (permalink) Old Sep 6th, 10, 05:53 PM Thread Starter
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Re: rear tire clearance to leaf springs

I guess I should have mentioned my wheel / tire specs but didn't think it mattered at first, I didn't consider a lower profile would have less movement. I have 15" x 10" wide wheels with 275/60/15 bf goodrich radial t/a's. I figured most of the sidewall flex would be on the lower portion of the tire where it meets the road. Oh, I do not have a rear sway bar. Thanks for the responses!
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post #6 of 8 (permalink) Old Sep 6th, 10, 10:34 PM
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Re: rear tire clearance to leaf springs

1/2" is the general rule, but at 3/8" your fine (assuming your not planning to autocross) With 17's and 18's with short stiff sidewalls guys are getting away with a 1/4", But with those 6 1/2" sidewalls you'll see more flex.
As for moving springs there are offset rear spring shackles that can gain @ 1/2" at the tire.(@1" rear offset) they are tight to the tank but do fit without scraping. Although like I said I wouldn't bother unless you start having issues.


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post #7 of 8 (permalink) Old Sep 7th, 10, 03:54 AM Thread Starter
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Re: rear tire clearance to leaf springs

Harley,

Would you happen to know who makes those 1" offset shackles just in case I end up needing them. I'll do some searching also.

Thanks again, Mike
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post #8 of 8 (permalink) Old Sep 7th, 10, 08:49 PM
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Re: rear tire clearance to leaf springs

Sorry
CE or Morroso used to make a steel version similar to the ones Detroit Speed makes now.http://www.ss396.com/mm5/merchant.mv...ode=camaro6769
They where 1/2" steel bent in the same shape, and sold for about $80-$100 about 8-10 yrs ago.


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