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Air Pressure in 35s

Discussion in 'Wheels & Tires' started by Coolhardy, Aug 19, 2017.

  1. Aug 19, 2017 at 9:17 PM
    #1
    Coolhardy

    Coolhardy [OP] New Member

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    I m running 35s on 20 inch TSS wheels with Pro-comp All Terrain tires. I was wondering what PSI you all running on Tundra.

    I began with 50PSI front and rear and the ride was too bouncy. I then changed to 43 and it feels better now. I wanted to try 40 but wasn't sure if it will effect the tires. I m not towing and no load on the bed either.

    Before anyone post,
    "open the driver side door and look at the sticker for the tire pressure "
    The above has already been done and it states 50PSI for my 33 inch LT tires that the truck came with. I changed the tires from 33 to 35s.
     
  2. Aug 19, 2017 at 10:34 PM
    #2
    Les7311

    Les7311 Look up, what do you see

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    Am at 60psi. Sorry, didn't check door
     
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  3. Aug 20, 2017 at 12:17 AM
    #3
    chphilo

    chphilo Tundra addict

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    Is your tire 35x11.5 or 35x12.5 or wider. They typically have different maximum psi ratings. Wider tires have max psi of 65 and narrower ones have 80 max psi.

    Mine has 80 psi max and I run them at 45 psi.
     
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  4. Aug 20, 2017 at 5:15 AM
    #4
    Coolhardy

    Coolhardy [OP] New Member

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    My tire size is 35x12.50x20

    I should b ok at 42-43psi. Do you go above 45psi when you are towing? I just don't want to go too low and damage the tire...
     
  5. Aug 20, 2017 at 6:59 AM
    #5
    Sefferston

    Sefferston #37sandlongtravel

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    You won't damage the tire. Over inflation, on the other hand, will do damage due to abnormal wear.
     
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  6. Aug 20, 2017 at 7:10 AM
    #6
    Law323

    Law323 it’s only weird if you make it weird

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    I run my 275/70's at 41. You should be just fine with those numbers.
     
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  7. Aug 20, 2017 at 8:11 AM
    #7
    ToyotaTundraMike

    ToyotaTundraMike Not A New Member

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    I noticed that for some reason Toyota puts mine at 37 each time I go. Should I bump it up some? (275/70/18)
     
  8. Aug 20, 2017 at 11:04 AM
    #8
    TXRailRoadBandit73

    TXRailRoadBandit73 TOYOTA,RAILROADER,RÖKNROLLN',BEER,BACON,FURBABIES

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    35*12.50*20 Toyo AT II @45 psi
     
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  9. Aug 20, 2017 at 11:10 AM
    #9
    CaptTyler

    CaptTyler Life’s too short to have an ugly boat.

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    295x65x20 Toyo AT2, 44psi for me.
     
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  10. Aug 20, 2017 at 2:03 PM
    #10
    Juanjoolio007

    Juanjoolio007 New Member

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    I was wondering this same thing. I just started doing my own oil changes and tire rotations since i just got out of the 2yr/25k mile service range. I rotated my tires and checked air pressure for the first time in two years. Now before people think why wouldn't you check your pressure more often.....Answer: this is my third Toyota and 2nd lifted with wheels and tires from the dealer. I about drove down to Toyota and lost my mind. They were at 26 psi. I started searching around here and found a thread where people were running them at various psi's to see if it effected fuel mileage. I set mine to 39(over shot 38 at a gas station and didn't feel like playing the back and forth game so left it there). Crazy thing is I have never gotten a Tire Pressure light. I am almost positive they never put sensors in these rims and never disclosed it.
    Anyway to answer your question 39 now i have no idea what it was before. I have Pro Comp MT's and surprisingly don't have any crazy tread wear. Tires have just over 18k on them.
     
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  11. Aug 20, 2017 at 7:03 PM
    #11
    CM-LENNY

    CM-LENNY No Complaints

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    I know the post title is 35's, but I am running 37x12.50 nitto G2 on oem 18" wheels and run mine at 33-34 psi daily driving and run them at 60 psi towing. This is a 10ply E-rated tire and our trucks are not that heavy. Anything much greater than the 35psi and it effects the ride quality. Tires wearing great at 33psi.
     
  12. Aug 20, 2017 at 7:30 PM
    #12
    Juanjoolio007

    Juanjoolio007 New Member

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    Good to know. 37's are what I'm planning on getting when it's time to replace these 35's. Hopefully I can space it like gears next year tires the year after. I have been trying to remember what I used to run my 35's at in my f250 as a comparison but that was back in 2011. I have noticed that at 39 psi the ride feels a bit stiffer then down at 26. I may split that difference and try the 33 your running.
     
  13. Aug 20, 2017 at 7:34 PM
    #13
    Coolhardy

    Coolhardy [OP] New Member

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    Let me try 35 on my 35s tomorrow.
    Let's see if I notice the difference. Was a huge difference from 50 to 43
     
  14. Aug 20, 2017 at 7:36 PM
    #14
    Coolhardy

    Coolhardy [OP] New Member

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    I m glad I found someone running Procomp here. I m running Procomp AT and I m pretty happy so far. I will try 35psi tomorrow and see if I notice a difference. 50 was too bouncy but 43 wasn't too bad. Guess somewhere between 35-38 should work.
     
  15. Aug 20, 2017 at 7:44 PM
    #15
    Jsena

    Jsena Trend setter, not a follower!!

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    I have 37's. I'm using 45Psi and it feels good.. felt to low with 35psi
     
  16. Jun 11, 2018 at 7:04 PM
    #16
    Shaggypeach

    Shaggypeach New Member

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    I have a 285x55x20 Yokohama M322 tires. Which psi you guys recommend. I just noticed front looking lower than what I am used to seeing when I bought it used. I measured from the floor to the fender on a straight line front is at 40'" and rear is at 42". I remember them looking level now I can clearly see front dipping
     
  17. Jun 11, 2018 at 7:12 PM
    #17
    TheBeast

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    295/70/18 Toyo AT2 at 41 PSI
     
  18. Jun 11, 2018 at 7:24 PM
    #18
    Prostar 190

    Prostar 190 Super Secret Elite Member #9

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    My 35x12.50x20 I have been running 48 but tow a boat alot.
     
  19. Jun 11, 2018 at 7:54 PM
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    Shaggypeach

    Shaggypeach New Member

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    I have the same tire size Yokohamas e rated 10ply. This can't be right can it?

    IMG_20180611_212100.jpg
     
  20. Jun 3, 2019 at 12:39 PM
    #20
    Macreggg

    Macreggg TRD No

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    Do you still run your tires at 41 psi?
    How is wear? 41 psi is harsh on mine same size but STT PROs.
     
  21. Jun 3, 2019 at 1:02 PM
    #21
    TheBeast

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    yep. 40 psi right now. haven't noticed any wear. i rotate my tires every oil change
     
  22. Jun 3, 2019 at 1:24 PM
    #22
    Tundra_361

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    Run my Toyo AT2 35/12.50r20 at 40 psi. Sweet spot for me.
     
  23. Sep 9, 2021 at 7:32 PM
    #23
    Keithbickford

    Keithbickford New Member

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    I’m surprised your truck recommended 50PSI. Mine recommends 30. But on to the question and answer.
    Looking at your OEM tires, divide the max pressure by the load limit and multiply by the actual weight of corner of truck. That should get you close to the number recommended on the placard. Again, I’m surprised it’s 50.
    So, for your new tire, divide the max air pressure by the max load and multiply it by the weight on that corner.
    in my case, 56PSI/3165LBS*2180LBS=38 PSI
    So, I run 38 PSI
     
  24. Sep 9, 2021 at 7:38 PM
    #24
    PayItOff428

    PayItOff428 New Member

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    Since nothing I do seems to change my gas mileage in my 5.7 I run my 35” Togo’s @ 35 PSI and they have worn perfectly. Just rotate every 3-4K and your good. I bought the truck with the 35” tires and littlerally almost returned it because of how rough it was. I put a tie gauge on it and when it said 55 PSI I almost shat myself. I let the air out to 35 PSI and I knew I was keeping it in less than 5 minutes.
     

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