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Wheel backspacing.

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Old 09-03-2011, 12:39 PM
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Default Wheel backspacing.

What wheel backspacing do I need for a 4.5in RC lift? I'm looking in the directions and it says 3.75 but on their website it says 4.5.
Old 09-03-2011, 09:41 PM
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What size tires you gonna run? For 31's, you need at least 4 inch BS. For 32's, I know 3.5 is good, and 3.75 will prolly work.
Old 09-03-2011, 11:01 PM
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Height of the tire doesn't matter. Its the width that matters.
Old 09-03-2011, 11:04 PM
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265/75 or 285/75.
Old 09-03-2011, 11:18 PM
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I have 32x10.5's with about 4.5 bs and have no rubbing at all with my rc 4.5 kit
Old 09-03-2011, 11:26 PM
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Originally Posted by wiggles
I have 32x10.5's with about 4.5 bs and have no rubbing at all with my rc 4.5 kit
Well i'd really like to run 3.75s because they will be around $20/wheel cheaper lol. But if I need 4.5in then so be it.
Old 09-03-2011, 11:39 PM
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Originally Posted by mr white

Well i'd really like to run 3.75s because they will be around $20/wheel cheaper lol. But if I need 4.5in then so be it.
You will just sit a little wider
Old 09-03-2011, 11:42 PM
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Originally Posted by wiggles
You will just sit a little wider
It won't hit the fenders when I steer will it? I don't want them sticking out real far, maybe an inch or two.
Old 09-03-2011, 11:44 PM
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Originally Posted by mr white

It won't hit the fenders when I steer will it? I don't want them sticking out real far, maybe an inch or two.
Shouldn't with 32's
Old 09-03-2011, 11:48 PM
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Section width on the 32s is 10.6. I may want to get 33s with a section width of ~12in after these tires wear out. Who knows. I want these wheels to work though with either lol.
Old 09-03-2011, 11:53 PM
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Originally Posted by mr white
Section width on the 32s is 10.6. I may want to get 33s with a section width of ~12in after these tires wear out. Who knows. I want these wheels to work though with either lol.
Should be fine for both but you will have to trim for 33's
Old 09-03-2011, 11:55 PM
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Can anyone else verify? I mean it's only .75in difference but still.
Old 09-04-2011, 12:08 AM
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3/4 can make a world of difference sometimes. But ya a second opinion is always good
Old 09-04-2011, 11:08 AM
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Have you thought about running 4 inches of BS on a 15x8 inch rim. That should work for your 265/75s, or 285/75s, or for a 10.5 width tire, and it will also work for a 33x12.5 if you decide to go that wide later.
Old 09-04-2011, 12:57 PM
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OK I have 15x8 rims with 3.75 of backspacing on a 4.5 inch RC lift.
Attached Thumbnails Wheel backspacing.-s4030054.jpg   Wheel backspacing.-s4030055.jpg  


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