Author Topic: rear wheel size and backspace  (Read 2397 times)

jonboy1216

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rear wheel size and backspace
« on: November 17, 2008, 05:15:50 AM »
what is the largest tire and rim combo can a stock 68 non tubbed car hold without rubbing?

PANTHER-BUFF

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Re: rear wheel size and backspace
« Reply #1 on: February 17, 2009, 01:09:12 AM »
I have 17 x 7 fronts with 4.5" backspacing, 17 x 8 rears 4.75" backspacing, backs rub slightly when car gets twisted on incline - no biggey

Try this:

http://www.camaros.net/forums/showthread.php?t=100853

https://www.rsracing.com/tech-wheel.html

http://www.miata.net/garage/tirecalc.html

http://www.1010tires.com/TireSizeCalculator.asp

Hope this helps!!
Danny
Danny

ChevyThunder

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Re: rear wheel size and backspace
« Reply #2 on: May 29, 2009, 03:15:09 PM »
plenty of great info on the Team Camaro site

http://www.camaros.net/forums/forumdisplay.php?f=17
1969 X44 COPO
1969 X33 RS Z/28

hotrod68

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Re: rear wheel size and backspace
« Reply #3 on: May 30, 2009, 03:32:06 AM »
I have 15x9 Pro Stars, 4.5" backspace with 11.5x28 Hoosier street slicks on mine. The tires kiss the inner fenderwells on turns, but like buff said--no biggie. A 1/2" spacer would cure it easily There is plenty of clearance at the outer lip, where all the trouble is usually caused by positive offset. Hope this helps!
HotRod'68  1968 SS350 coupe undergoing frame-off resto/rod. 386/350/4.11s
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jonboy1216

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Re: rear wheel size and backspace
« Reply #4 on: June 01, 2009, 04:14:58 AM »
thanks for the info