What is the backspacing on 69 Z/28 rallys? - Team Camaro Tech
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post #1 of 3 (permalink) Old Jan 1st, 04, 09:40 PM Thread Starter
Join Date: Oct 2003
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Does anyone know what is the stock backspacing on 1969 Z/28 rallys (15 x 7")? I must have measured wrong because I got 4 1/4.
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post #2 of 3 (permalink) Old Jan 4th, 04, 03:07 PM
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Join Date: Sep 2000
Location: Washington, Michigan USA
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OEM's don't use "backspacing" measurements - they use offset (difference between the rim centerline and the wheel mounting surface). On a "YH" 15x7 '69 Z/28 rally wheel, the offset is +0.30", so the backspacing is 3.80" from the wheel mounting surface to the inside of the inboard rim flange where the tire bead seats (not to the outer edge of the rim flange). [img]graemlins/thumbsup.gif[/img]

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post #3 of 3 (permalink) Old Jan 4th, 04, 06:40 PM Thread Starter
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thanks! [img]smile.gif[/img]
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