GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

what the widest tire i can fit

Old Jul 9, 2007 | 06:17 PM
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Default what the widest tire i can fit

i have some 20x8.5 rims and was wondering what is the widest tire i could fit with a 4/6 drop?? pics would help out as well. backspacing on wheel is 5.5
and offset +19mm if that matters any

Last edited by GTOsRamairSilverado; Jul 9, 2007 at 08:12 PM.
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Old Jul 9, 2007 | 07:05 PM
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i have 305s on my 20x8.5s
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Old Jul 9, 2007 | 07:09 PM
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Depends on the backspacing of your wheels.
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Old Jul 9, 2007 | 07:38 PM
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has anyone gotten one wide enough that it wont fit, as in hitting the springs. im lookin at the toyo 315/35, i have 9.5 wheels that might work
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Old Jul 9, 2007 | 08:04 PM
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Originally Posted by Quik
i have 305s on my 20x8.5s
you have 305's with a 4/6 drop?
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Old Jul 9, 2007 | 08:05 PM
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i think his is a 3/4
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Old Jul 9, 2007 | 08:10 PM
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Originally Posted by SnakeOiler
Depends on the backspacing of your wheels.
backspacing is 5.5
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Old Jul 9, 2007 | 08:21 PM
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Originally Posted by nightrunner
i think his is a 3/4
yeppers
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Old Jul 9, 2007 | 10:36 PM
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Originally Posted by GTOsRamairSilverado
backspacing is 5.5
If you roll the lips, you might get 265 in there. You need more backspacing on the wheels for a wider tire.

Originally Posted by nightrunner
has anyone gotten one wide enough that it wont fit, as in hitting the springs. im lookin at the toyo 315/35, i have 9.5 wheels that might work
For a 315/35, you should have at least a 10.5" wide wheel.

Originally Posted by Quik
i have 305s on my 20x8.5s
Qwik, would that be a 305/50 ?
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Old Jul 9, 2007 | 11:41 PM
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Originally Posted by SnakeOiler
If you roll the lips, you might get 265 in there. You need more backspacing on the wheels for a wider tire.


For a 315/35, you should have at least a 10.5" wide wheel.


Qwik, would that be a 305/50 ?
305/40
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