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Help with offset and backspacing

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Old 08-21-2011, 08:38 AM   #1
Sanders17 [OP] Sanders17 is offline
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Help with offset and backspacing

Im in the process today of ordering xd spys from 4wheel and need to know if 5.21 inch backspacing and an 18mm offset on 265/70/17 nitto terra grapplers will work with no rubbing.
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Old 08-21-2011, 08:43 AM   #3
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17x9
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Old 08-21-2011, 08:43 AM   #4
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sorry 17x8 my bad
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Old 08-21-2011, 08:46 AM   #5
Bah Humshit!
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Edited after your typo.

I think you'll sit outside the fenders a bit. Most of us go for around 4.5bs. IIRC we did the math and 3 something was stock BS. You're running a stock tire size btw.

I doubt you will have rubbing issues, but if you ever go up another size tire, it may put you that much closer to the cab mount.

Hopefully someone that's more of a tire expert will chime in soon. Bear with us, its early and were recovering from a long night of binge drinking
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Old 08-21-2011, 08:53 AM   #6
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my stock size was 245/65/16 i think. Thats what it says on the door atleast
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Old 08-21-2011, 08:56 AM   #7
Bah Humshit!
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Quote:
Originally Posted by Sanders17 View Post
my stock size was 245/65/16 i think. Thats what it says on the door atleast
Non trd? I hate metric conversion but I think most the stock TRDs are 265/70/17s.... at least the sports with 17s are. You'll clear em easy. Its just your wheel backspace that messes with the geometry.
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Old 08-21-2011, 09:01 AM   #8
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yeah its not a trd. my wheels stock wheels are actually 16x7 and the tire size is 245/75/16
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Old 08-21-2011, 09:04 AM   #9
Bah Humshit!
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Quote:
Originally Posted by Sanders17 View Post
yeah its not a trd. my wheels stock wheels are actually 16x7 and the tire size is 245/75/16
Yup. The trucks are the same though, what fit stock for me will fit fine for you. Do they offer a lesser backspace for your wheel? Have you searched the forum, I'm sure people are using them.
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Old 08-21-2011, 09:11 AM   #10
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yeah they offer a -12mm and 4.5 bs but i didnt know the difference
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Old 08-22-2011, 05:49 AM   #11
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Quote:
Originally Posted by Sanders17 View Post
Im in the process today of ordering xd spys from 4wheel and need to know if 5.21 inch backspacing and an 18mm offset on 265/70/17 nitto terra grapplers will work with no rubbing.
Yes that will be fine.

Quote:
Originally Posted by brian View Post
Edited after your typo.

I think you'll sit outside the fenders a bit. Most of us go for around 4.5bs. IIRC we did the math and 3 something was stock BS. You're running a stock tire size btw.

I doubt you will have rubbing issues, but if you ever go up another size tire, it may put you that much closer to the cab mount.

Hopefully someone that's more of a tire expert will chime in soon. Bear with us, its early and were recovering from a long night of binge drinking
Stock BS is 5.5"

The 17x8 wheel the op wants will sit out 1.25" further than the stock rims (1" from the width, and 0.25" from the backspacing)

Quote:
Originally Posted by Sanders17 View Post
my stock size was 245/65/16 i think. Thats what it says on the door atleast
245/75/16 is stock for an SR5.


Quote:
Originally Posted by Sanders17 View Post
yeah they offer a -12mm and 4.5 bs but i didnt know the difference
That would be for a 9" wide rim.
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