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» Northern California Ford Owners     » Automotive   » Tech Talk   » backspacing with welds??

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Author Topic: backspacing with welds??
the50ho
THE50HO
Member # 73

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I'm looking to run a 15x3.5 and 15x8 set up on my 98 cobra. What is the proper backspacing for these wheels? the rears should be a 5.5" correct? and just for extra reassurance, what is the bolt pattern?

Also, it is my understanding that a 15x8 with a 5.5 bs will not require grinding, and the 15x3 will only require a 30mm spacer.

Please help out guys! I may have found my track set up today and want to get them as quick as possible!

Thanks!!

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Too many motorcycles...and now a destroyed arm from Motocross...brrraaappp
Posts: 4056 | From: Roseville, Ca (Sacramento) | Registered: Nov 2000  |  :
chosen1
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Member # 1906

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i would get the 5.5 b/s for the rears. the bolt pattern is 5x4.5....but draglites have dual patterns so you cant really fail on that one.

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1967 Fastback. Should go 10's -but doesn't
1993 Cobra
2003 Suzuki SVS
1966 Coupe -For Sale
Posts: 2205 | Registered: Sep 2002  |  :
the50ho
THE50HO
Member # 73

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quote:
Originally posted by Chosen1:
but draglites have dual patterns so you cant really fail on that one.
[Razz] *DOH* some trains of thought never leave the station on this sleep schedule I'm on [Big Grin]

Thanks!

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Too many motorcycles...and now a destroyed arm from Motocross...brrraaappp
Posts: 4056 | From: Roseville, Ca (Sacramento) | Registered: Nov 2000  |  :
bunchmyfunky
CAFords Drag Racing Mod
Member # 360

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I have 15x10 draglites with a 6.5 bs so I think the 5.5 bs with the 15x8 should be fine. As far as the skinnies go I wasn't able to just run the spacer in the front, it cleared the brakes but the length of the studs was not long enough with the spacer on.
Posts: 2433 | From: Vacaville | Registered: Jul 2001  |  :
season'd 88
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Member # 169

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The front is what sucks on your car and my set up as well. You definatly need a spacer. Bunchmyfunky has em. Its Bunchmyfunkys responsibility to provide his cohorts with said spacers, as needed. [Big Grin] You may test fit my 15x8 welds w/ 5.5 backspace sometime if youd like. I suggest skipping that size and going with the 15x10s that Mark and Drew run and grow into them.
Posts: 1383 | Registered: Feb 2001  |  :


 
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