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TSS Model That Came with D rated Bridgestones -- Air Pressure Door Sticker?

Discussion in 'Wheels & Tires' started by RDRunner, Aug 20, 2019.

  1. Aug 20, 2019 at 7:24 AM
    #1
    RDRunner

    RDRunner [OP] New Member

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    I am getting new Goodyear 275/65R18 Duratract E rated tires tomorrow on my 2016 Tundra CM 4x4 TSS (I am changing the wheels from 20 to 18).

    The Goodyear website recommends airing the tires according to the factory specifications on the door sticker (except when towing or hauling).

    My truck is a TSS model that came with Bridgestone 20" D rated tires. It came with a special TSS door sticker that was pasted over the factory one that had higher air pressure for the D rated tires. I took the TSS door sticker off because I was running P rated tires for a while.

    The new 2019 TSS trucks have C rated tires in my area, so I don't know if that sticker is as accurate as the one that came on my truck.

    Can someone with a 2016 (or other year) TSS that came with D rated tires please let me know what your TSS door sticker says for air pressure?

    Thanks
     
  2. Aug 20, 2019 at 9:01 AM
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    Stumpjumper

    Stumpjumper New Member

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    I would run 46-50 in the Duratracs. My door sticker says 46 but I run 50 in my BFGs. I had Duratracs Cs on Tacoma and Discojnt said to run 42 at least.
     
  3. Aug 20, 2019 at 9:06 AM
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    RDRunner

    RDRunner [OP] New Member

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    Thanks. How did you like the Duratracs? I see that you have BFGs on your Taco so maybe you prefer that tire.
     
    Last edited: Aug 20, 2019
  4. Aug 20, 2019 at 1:22 PM
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    Scuba

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    My Texas Edition came with 285/55/20 D BFG’s and it called for 49PSI.

    When I ran the calculator for new air pressure specs (on my sales system at Discount Tire) it called for 55 in my E rated 275/65/20 BFG.
     
  5. Aug 20, 2019 at 2:50 PM
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    Stumpjumper

    Stumpjumper New Member

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    I ran the Duratracs for 30k on the Tacoma. Duratracs sure looked like they would be better in mud but my Tacoma was a Prerunner so never saw a lot of it. I got them because I needed a good AT in a lighter weigh . Never had a problem with them but when I replaced the OEM BFGs on the second Tacoma, which was a 4wd, I went with ST Maxx. Knock on Duratracs is sidewalls and noise after wear. The ST Maxxs are tough but also can be tough to balance. Replacements on Tundra will probably be the new Goodyear ATs that Discount sells.
     
  6. Aug 20, 2019 at 5:06 PM
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    RDRunner

    RDRunner [OP] New Member

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    Thank you all for the replies. Greatly appreciated.
     
  7. Aug 21, 2019 at 7:52 AM
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    RDRunner

    RDRunner [OP] New Member

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    I just came from Discount Tire and had the tires installed. Discount Tire has a conversion program that converts the manufacturer door sticker for the stock tire to an E rated tire to calculate the air pressure. My factory door sticker states 30 psi in front and 33 psi in the rear. The new numbers for E rated tires according to Discount Tire are 35 psi in the front and 40 psi in the rear. The first salesman did not understand the issue and did not know about the air pressure conversion program, so you have to ask the right person there. Another salesman overheard me saying the door sticker pressures would not work and then he jumped in and ran the numbers.
     
    Last edited: Aug 21, 2019
  8. Aug 21, 2019 at 8:14 AM
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    Gotyour6

    Gotyour6 New Member

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    Let me know how you like those tires.
    I ran them on my Tacoma and they were loud but I got used to it.

    With the growl of my exhaust I doubt I would hear them that much but dont know.
     
  9. Aug 21, 2019 at 9:48 AM
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    the_midwesterner

    the_midwesterner New Member

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    None, yet....
    Chalk test is about the only accurate way to do this. Unless you want to invest in a pyrometer. My experience with any tire guy who tells you XYZ pressure is best, is because they have no idea what they are talking about. Tire pressure has to vary based on weight, load, alignment, etc. in order to get the best contact patch. So what works for one truck, definitely doesn’t work for another.

     
  10. Aug 21, 2019 at 11:46 AM
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    Scuba

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    The tire pressure calculator that we use at Discount Tire will tell you minimum air pressure needed to support max GVWR with the new tires.

    Now, do we all run max GVWR all the time? Probably not. So pressure can be adjusted based on load but, the calculator is there for safety reasons.
    We don’t want people running around with under inflated tires.
     
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  11. Aug 21, 2019 at 12:13 PM
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    RDRunner

    RDRunner [OP] New Member

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    The manufacturer door sticker does the same thing--those are minimum air pressure numbers based off the original tires and the load tables for those tires and the truck weight. If you change load ranges from the factory tires (from P to E load), the same load tables can be used to convert the manufacture number to the E load tires. That is what the Discount Tire calculator does, and those load tables are accurate for minimum numbers. I trust the Toyota engineers and those load tables, even more than I would trust a chalk test.
     
  12. Aug 21, 2019 at 12:24 PM
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    RDRunner

    RDRunner [OP] New Member

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    Will do.

    They do have more noise than the BFG AT from what I remember, and I am sure they will get louder as they wear. But they ride very soft for an E rated tire (almost as soft as my P rated Michelin Defenders I had on it). My truck came with BFG AT D rated tires (the first version--not the KO2) and they rode much stiffer (to the point where I did not like them).

    While I was at Discount Tire, I looked at a BFG AT K02 (E rated) on a display and looked and felt its sidewall thickness. I then did the same to my new Duratrac E rated tires before they were mounted. It is true that the BFG had a much thicker and stiffer sidewall than the Duratrac. The sidewall on the Duratract felt more like a P rated tire. I thought people may be exaggerating or maybe it was a myth about the sidewalls, but that is not the case. Of course, there may be pros and cons to having each type of sidewall. I am sure the ride quality on the Goodyear is because of the less robust sidewall.

    I will give a better report when I have had them a while.

    By the way, it was about a toss up between the Duratracs and BFG AT KO2s for this purchase based on my own research. I have owned the BFGs before (the old version), so I decided to go with the Goodyears this time.
     
    Last edited: Aug 21, 2019
  13. Aug 21, 2019 at 12:27 PM
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    Scuba

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    Exactly.
    However I would bet if you run the calc. and put the D rated 285’s as OE the numbers would change for your new E tires.

    Not gloating but, just so y’all know where I’m coming from, I am an assistant manager at Discount Tire (TXA05) and have been with the company for more than 5 years now. I have played with the air pressure calc many many times.


    Anyway. I think you have a good baseline. When in doubt.. 35PSI. :thumbsup:
     
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  14. Aug 21, 2019 at 12:34 PM
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    rustynail11

    rustynail11 New Member

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    I put Duratracs on my 17 CM about 10,000 miles ago and love them. They are a bit loud but I don't notice any more and they ride and wear great
     
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  15. Aug 21, 2019 at 12:39 PM
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    Stumpjumper

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    Just check the construction specs on the Goodyear website and you will know that Duratracs have a lighter sidewall. As far as running 35 lbs in them i can almost guarantee more wear on the edges. Local Discount joints all seem to have different ideas. The one I go to said 42 minimum on C rated Duratracs on a Tacoma
     
  16. Aug 21, 2019 at 12:47 PM
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    RDRunner

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    A lot of good information on here. I am going to confirm the numbers myself based off the Toyo pdf that explains all of this. See attached. I may also do the chalk test because I ran too low air pressure on my 305/55R20 Michelin Defenders (32 pounds) and I did get edge wear (tires have 6/32 on side and 8/32 in middle). I try not to make the same mistakes again. LOL
     

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  17. Aug 21, 2019 at 12:48 PM
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    RDRunner

    RDRunner [OP] New Member

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    Most of the 2019 TSS trucks in my area come with C rated Duratrac tires. That was one thing that convinced me to try them.
     
    Last edited: Aug 21, 2019
  18. Aug 21, 2019 at 1:43 PM
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    RDRunner

    RDRunner [OP] New Member

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    I just looked up the numbers on the Toyo tire tables and conversion method and came up with 50 psi for the front and 55 psi for the back. Oh well, I guess I am going to have to play around with the pressure some.
     
  19. Aug 21, 2019 at 2:06 PM
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    Scuba

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    I’m not surprised.
     

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