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HELP with Back spacing/offset for fender flares

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Old May 28, 2012 | 10:47 AM
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Default HELP with Back spacing/offset for fender flares

Sorry not very good at calculating backspacing and offset for rear wheels for 2" flares. Anyone out there that knows the answer or provide assistance please chime in
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Old May 28, 2012 | 11:08 AM
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I tried doing some of my own calculations by using stock front dimensions, and what I calculated for the rear...if anyone can look at this to help me out???

Front
18x8.5
+56 offset
6.8" backspacing

Rear
19x12
+63 offset
10.2" backspacing
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Old May 28, 2012 | 08:14 PM
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This should help

http://www.rimsntires.com/specs.jsp
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Old May 29, 2012 | 07:54 AM
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Thanks Jonathan, I actually have that site listed on my favorites. I guess I'm having trouble with some of the terms and how to visualize them. Unless I'm reading this incorrectly, it doesn't necessarily show how much farther the wheels will come out.
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Old May 29, 2012 | 04:07 PM
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Is it a coupe or zo6/FRC? Are you trying to determine widest wheel/tire you can run on the rear or do you already know the wheel width?
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Old May 29, 2012 | 05:30 PM
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19*12 for flared fenders. I might just go with either c6 z06, or GS wheels. I don't think they will push the wheels out enough to fill in the flares, and I'm trying to get away from running an adapter. Did look at forgestar, but build time is backed up apparently.
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Old May 29, 2012 | 06:35 PM
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If you go with c6z or GS wheels you will need 21mm adapter or spacers to push the wheels flush, that is about 13/16" thick. If your wheels do not have the recess on the hub you will have to use a spacer which means you will have to install longer wheel studs. Use hubcentric adapter or spacer.

If buying custom wheels the manufacture can provide the proper offset.

Last edited by meflyfrc; May 29, 2012 at 06:37 PM.
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