37s psi

[immaechu]

what do you set your 37s psi at?

Mine is currently at 38psi but is a bit shaky on the freeway. Dont know if its road conditions. The lift is all tightened.
But i do have the Electonic steering Stability light thay comes on all the time when i step on it.

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[Silvertruck]

I run mine at 37 psi. No vibes no shaking.

 

[PJM86]

I have 37 BFG KO2s, run them at 29. Smooth ride....lol.

 

[TTEChris]

26-28psi for most 37s for even wear and a decent ride.

You can chalk test to see what pressure gives you optimal contact across the tire, but usually it's even lower than 26psi.

We run out 41s at 22psi for fairly even wear(Chalk test shows we should go lower)

 

[immaechu]

I'm not used to large tires so I'm not sure.

The from the dealership psi was 41. So, with maybe a 29-32 or so would be okay for long distance highway driving?

 

[Renegade]

I'm not used to large tires so I'm not sure.

The from the dealership psi was 41. So, with maybe a 29-32 or so would be okay for long distance highway driving?

If you’re on stock tires, and carrying no load, 34-35 should be about right. With load, 37 psi. You mention a lift and “large tires”. What are you running?

 

[Silvertruck]

I’m surprised to see running psi in the 20’s. Not saying its wrong either.

A good idea could be to call the tire manufacturer. Different gvwr and axle weights may call for different pressure for the same type of tire, depending on application. Might be a good step as an initial setup then customize to suit.

 

[Russler]

Running 37" Nitto Ridge Grapplers - did the chalk test. Running 30 psi in front and 29.5 psi in rear.

 

[Factoid]

I run 32psi, but I have 20” wheels and 13.50 width tires. These dimensions matter when determining psi. Chaulk test is best.

 

[immaechu]

If you’re on stock tires, and carrying no load, 34-35 should be about right. With load, 37 psi. You mention a lift and “large tires”. What are you running?

im running 37s and 2.5" lift.

I set it to 32psi and it feels a lot better now. but do you think I should go lower?

 

[Renegade]

im running 37s and 2.5" lift.

I set it to 32psi and it feels a lot better now. but do you think I should go lower?

You could try 30. That’s where I like mine. Chalk tests ensure proper treadwear, but handling is at least as important.

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