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» Northern California Ford Owners     » Automotive   » Tech Talk   » Help PLEASE! what is the backspacing in mm for my rim

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Author Topic: Help PLEASE! what is the backspacing in mm for my rim
94gt
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i'm trying to find the backspacing for my 17x9 10th anny cobras for a prospective buyer, but he's asking for the measurement in millimeters for his car.
the only thing i know is that the FRPP catalouge says they are 6.12" backspacing, and I tried to convert them to millimeters and it came up with 155. so i'm guessing i'm doing something wrong.

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2020 Explorer ST
2011 Silver Raptor 'Screw

Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003  |  :
truthseeker
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Here is what I got 155.448 mm.

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1998 SVT Cobra Convertible | VT Cobra Billet Shortblock | T56 Tranny with Viper 5th and 6th | #3425 of 3480 | 17x9 + 17x11 CCW Classic's | 4.10 gears

Posts: 226 | From: Elk Grove, CA | Registered: Jun 2004  |  :
66 AC COBRA
Nitrous King
Member # 904

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quote:
Originally posted by 94gt:
i'm trying to find the backspacing for my 17x9 10th anny cobras for a prospective buyer, but he's asking for the measurement in millimeters for his car.
the only thing i know is that the FRPP catalouge says they are 6.12" backspacing, and I tried to convert them to millimeters and it came up with 155. so i'm guessing i'm doing something wrong.

1 inch equals 2.54 centimeters, so that would eqaul 6.12x2.54= 15.5448
and 10 millimeters per centimeter, so 10x15.5448= 155.488

trith seeker hit it dead on

you FLAKE, what happened tonight [Big Grin]

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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5

Posts: 6280 | From: Winters | Registered: Feb 2002  |  :
94gt
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Member # 3060

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hey, i didnt say I was coming tonite! I just said that I was gonna get it tonite [Razz]

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2020 Explorer ST
2011 Silver Raptor 'Screw

Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003  |  :


 
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