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What Psi in 37s

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Old 03-07-2013, 10:56 AM
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Default What Psi in 37s
What Psi are you guys running in your 37s on the road/highway. Just got my 37in nitto mud grapplers, and they will be on a 2008 2dr with 513. Thanks!
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Old 03-07-2013, 11:01 AM
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I ran mine at 22 I run my iroks at 10 but they are bias
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Old 03-07-2013, 11:14 AM
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37 toyos and on road i run them at 26 psi.
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Old 03-07-2013, 11:17 AM
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Originally Posted by Biggy
37 toyos and on road i run them at 26 psi.
I did the same with that size tire, for road trips I would bump them up to 32 for a bit better handling and gas mileage


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Old 03-07-2013, 11:18 AM
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chalk test for best results

but...37" MTR's, 8" wide wheel, 28psi
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Old 03-07-2013, 11:57 AM
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I chalk tested my 37" MTR-k's and they were even at 22psi on a 9" wide wheel. Anything above 24-25psi and the ride gets much worse.
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Old 03-07-2013, 02:22 PM
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Ok sounds like a found round number is 30 psi until I can do the chalk test
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Old 03-07-2013, 03:07 PM
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Originally Posted by ghostjk
Ok sounds like a found round number is 30 psi until I can do the chalk test
I bet you drop it lower. At 30psi mine ride like round rocks.
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Old 03-07-2013, 03:18 PM
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Well I just need a good round number to ride on till I can do the chalk test.
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Old 03-07-2013, 03:19 PM
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Yeah 30psi in my 37's was way too much. Only rode on the center of the thread, and the ride was horrible.
Start at 25psi and work from there
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