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09-15-2005, 07:16 PM
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#1 |
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Registered Member
Join Date: Aug 1999
Location: New Port Richey, Florida
Posts: 483
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15x8 backspacing on 69 Mach1?
Does anyone know what the backspacing should be for a 15x8 wheel on a 69 Mach1? I`m gonna be ordering new wheels and I need to get it right. Thanks
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1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot. |
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09-19-2005, 05:26 AM
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#2 | |
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Registered Member
Join Date: Sep 2005
Posts: 4
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Re: 15x8 backspacing on 69 Mach1?
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In general, 4.5 - 4.75 will work well. Have you considered a 17' or larger wheel? You could fit a much larger tire because the larger diameter rim clears the front ball joints. |
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09-19-2005, 03:21 PM
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#3 |
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Registered Member
Join Date: Aug 1999
Location: New Port Richey, Florida
Posts: 483
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Re: 15x8 backspacing on 69 Mach1?
I`m planning on a 245/60R15 for the rear and a tad smaller tire in front. The reason for my post is that I talked to a guy with a 69 mach like mine with 15x8 /4.5 b.s. and he had cuts in his sidewall. Just not sure if I need a 4.75 or 5.
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1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot. |
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09-19-2005, 05:24 PM
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#4 | |
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Registered Member
Join Date: Sep 2005
Posts: 4
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Re: 15x8 backspacing on 69 Mach1?
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I can tell you this. I ran 15 x 8 Cragar SSs with 4.25 BS and a 255/60/15 in the rear of my 70 convertible. It looked great and would barely rub on occassion when the backseat was full of passengers. It had a real soft factory suspension with lots of travel. It literally gallopped over the Pensacola Bay Bridge on those memorable hot summer nights. But I digress, a 245/60 would have never rubbed. In the front I had 15 x 7s with with off the shelf backspacing. These never rubbed and looked great. The following link is to pictures of the car from my wedding video. http://www.picturetrail.com/gallery/...8623&members=1 |
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09-19-2005, 05:52 PM
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#5 |
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I'm slow ...I know.
Join Date: Dec 2003
Location: houston
Posts: 518
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Re: 15x8 backspacing on 69 Mach1?
4.5 inch backspacing ...roll the lip under the fender
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When you do things right, people won't be sure you've done anything at all... |
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09-22-2005, 05:31 AM
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#6 | |
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Registered Member
Join Date: Sep 2005
Posts: 4
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Re: 15x8 backspacing on 69 Mach1?
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