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Nitto ridge grapplers 35x12.5R18 tire pressure

Discussion in 'Wheels & Tires' started by Jimes, Dec 14, 2018.

  1. Dec 14, 2018 at 10:37 AM
    #1
    Jimes

    Jimes [OP] New Member

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    so I decided to hit up nitto directly for tire pressure recommendations on the ridge grappler 35x12.5R18s and they said 32 PSI cold in front and 34 PSI cold in the rear. I attached the response. Hope that helps someone. Dealership put mine at 36 PSI all the way around. I told them my weight and tires I have on. My truck weighs 6780 LBS with everything on it. At least that’s what the scale said at the dumps after I unloaded my dump run. That’s with 35s and full size spare, bed rack, RTT, and all my accessories. EFF841A9-919A-4E9B-A24F-C0DBA3707401.jpg
     
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  2. Dec 14, 2018 at 11:10 AM
    #2
    TundraMcGov.

    TundraMcGov. Your friend. Your foe. Not yo Ho.

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    Frankly, I think that that is low. But watch how they wear. And are you by chance running load range E?

    Since 1985 I have run 35 psi on my truck tires. When I got my 2017 Tundra with Terra Grapplers I did that and didn't like how they were wearing. I saw some others mention 44/45/46 psi (front, rear) and I bumped up to that. I've been happy with the wear since then.
     
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  3. Dec 14, 2018 at 11:21 AM
    #3
    Jimes

    Jimes [OP] New Member

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    Load range F. and ya I thought that was low too. But that’s cold PSI. wonder where that will put the tires at when hot.
     
  4. Dec 14, 2018 at 11:07 PM
    #4
    Sas

    Sas Humor is everywhere

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    Lost track after #1.
    I've contacted them numerous times over the past couple of months to see if they were consistent and they've told me the same thing each time as well. I have the exact same tires as you. I keep mine at 42 all the way around though. 32/34 seemed sluggish.
     
  5. Dec 14, 2018 at 11:15 PM
    #5
    Jimes

    Jimes [OP] New Member

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    How are yours wearing out at that PSI?
     
  6. Dec 14, 2018 at 11:18 PM
    #6
    Sas

    Sas Humor is everywhere

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    Lost track after #1.
    Wearing even as far as I can tell, but I've only put 5k miles on it since I've owned it.
     

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