rallys 15 x 7 or 15x 8 what fits best??? - Team Camaro Tech
Wheels & Tires What fits what?

 
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post #1 of 3 (permalink) Old Dec 4th, 05, 09:54 AM Thread Starter
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geneo
 
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Location: Sedro Woolley,WA 98284
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rallys 15 x 7 or 15x 8 what fits best???

Hi
looking to put some rallies on my 68 disc/drum car what fits best 7 or 8 rallies? any issues with shock mounts on rear with 8s'?
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post #2 of 3 (permalink) Old Dec 4th, 05, 10:57 AM
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Steve
 
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Re: rallys 15 x 7 or 15x 8 what fits best???

I have 15 X 8 with 4.5” backspace on the rear of my 67. With 255/60-15 tires I have no rubbing issues at all. Even with a full tank of gas and passengers in the back seat it does not rub. You really need to watch the section width of the tire you choose. I consider 10.2 inches of section width about max in the rear.

On the front I have 15 X 7 with 4.25” backspace. The tires are 235/60-15. The front brakes are original 4 piston disk. I get a slight rub on the RF inner fender while traveling straight and going over a dip in the road. It never rubs while turning. I believe changing the camber from +1˚ to 0 or -1˚ will solve my rub issue. More backspace (4.5”) would pull the tire away from the fender but would put the tires real close to the frame when turning. Tire diameter and tread width are the things to watch for on front tires. Look for 26” max diameter and 7.4” max tread width. Front tires that are rounded where the tread meets the sidewall will have less rubbing issues.

Steve

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I drove it for the first time in 1972 when I was 15.

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post #3 of 3 (permalink) Old Dec 6th, 05, 09:13 AM Thread Starter
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geneo
 
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Re: rallys 15 x 7 or 15x 8 what fits best???

thanks Steve for the info
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