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Thread: what air pressure should I run on my 40 " Nitto Grapplers

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    bebop86's Avatar

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    what air pressure should I run on my 40 " Nitto Grapplers

    guys running a 2015 2500 crew with 6 inch lift and 40 inch Grapplers- Tires have about 17000 miles and notice alot of wear- 90% drive empty and mostly highway driving- Have them set at 40LBS but thinking that is to low which may cause premature wear??- any suggestions and how many miles should I get on these tires- Also if I have to replace what is the best 40 inch tire for wear,ride and winter snow in NJ- thanks


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    MC250r719's Avatar

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    Re: what air pressure should I run on my 40 " Nitto Grapplers

    Quote Originally Posted by bebop86 View Post
    guys running a 2015 2500 crew with 6 inch lift and 40 inch Grapplers- Tires have about 17000 miles and notice alot of wear- 90% drive empty and mostly highway driving- Have them set at 40LBS but thinking that is to low which may cause premature wear??- any suggestions and how many miles should I get on these tires- Also if I have to replace what is the best 40 inch tire for wear,ride and winter snow in NJ- thanks
    What kind of nitto grapplers are you running, mud, trail, terra, exo, ridge, dune, dura? 40lbs seems low for a heavy duty truck, I run my tires at 65psi front 80psi rear. I had exo grapplers and they wore extremely uneven.

    2017 RAM 2500 Big Horn sport appearance package, Auto Level Rear Suspension, MM3 "switch" Fully deleted - tuned by DRD, Fleece Cheetah, Airaid Jr. CAI, 3.5" Banks Monster intake horn, Pusher Boost Tubes, 5" TBE with a Flo~Pro Twister muffler, *** EGR disappear kit, Black Market Performance CAT fuel filter and water separator, Black Market Performance fuel heater, Black Market Performance head studs, AFE deep trans pan, Revmax trans cooler bypass, Revmax HD Valve Body, DPC Low stall converter with billet flywheel, AFE pro series rear diff cover, Amsoil throughout provided by mcsynthetics.myamsoil.com

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    TexNeck's Avatar

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    Re: what air pressure should I run on my 40 " Nitto Grapplers

    I run 65 front 50 rear with tires in sig. 40 does seem low to me. Are they wearing even?

    2013 Ram 2500
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    Old... But Still Here! AnOldBiker's Avatar

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    Re: what air pressure should I run on my 40 " Nitto Grapplers

    One very old way to know what you should have ......





    Jim


    2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17

    "Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan

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    No Vacancy Power247's Avatar

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    Re: what air pressure should I run on my 40 " Nitto Grapplers

    Quote Originally Posted by AnOldBiker View Post
    One very old way to know what you should have ......

    This method works every time.

    Greg
    2012 | RAM 2500 | CCSB | Custom tuned by Double R Diesel
    2016 | Heartland Pioneer | DS310

    Greg
    2019 | RAM 2500 | CCSB | 6.4 HEMI

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