Tire Pressure Question - Dodge Cummins Diesel Forum
4th Gen Tire and wheel Discussion of tire and wheel options

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post #1 of 19 (permalink) Old 07-18-2019, 09:51 PM Thread Starter
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Tire Pressure Question

First post on the forum.

I'm looking for some opinions on tire pressure. I'm currently running Toyo M/T 35x12.50x22 with 22" AF wheels, and am curious what everyone's opinion on is the ideal tire pressure as far as ride quality is concerned. I also have a 4" SuperLift with their upgraded radius arms and Bilstein shocks front and back. I have the tires set at 55 PSI right now.

I used the search feature and couldn't find anything pertaining to these specs, so feel free to post a link to it and criticize me for not finding it on my own!


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post #2 of 19 (permalink) Old 07-18-2019, 10:06 PM
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If ride quality is your only criterion, then as little pressure as possible (while still keeping the beads seated) would be the answer.
For real life use, look up a load chart. You will need to know your axle weights, though, and keep in mind that the charts are for a full load, just like the door sticker for the stock setup, which is generally too much.

Maybe if we start telling people that the brain is an app, they will start using it?

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post #3 of 19 (permalink) Old 07-18-2019, 10:10 PM
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Try 45-50 front and 35-40 rear unloaded. TPMS light will come on but ride will be better

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post #4 of 19 (permalink) Old 07-18-2019, 11:16 PM
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2 words ... chalk test. There a couple great videos on YouTube. If you can't live with the lights and warnings, shoot me a PM for details on how to change the TPMS settings.
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TPMS Adjusted..
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post #5 of 19 (permalink) Old 07-18-2019, 11:22 PM
 
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Weigh your truck, consult the chart. Itís very easy. https://www.toyotires.com/media/2125...s_20170203.pdf
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post #6 of 19 (permalink) Old 07-19-2019, 10:58 AM
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Quote:
Originally Posted by wisdom_cody View Post
First post on the forum.

I'm looking for some opinions on tire pressure. I'm currently running Toyo M/T 35x12.50x22 with 22" AF wheels, and am curious what everyone's opinion on is the ideal tire pressure as far as ride quality is concerned. I also have a 4" SuperLift with their upgraded radius arms and Bilstein shocks front and back. I have the tires set at 55 PSI right now.

I used the search feature and couldn't find anything pertaining to these specs, so feel free to post a link to it and criticize me for not finding it on my own!
M/Tís and 35ís, coupled with 22x12Ē wheels, when stirred together, may just be mutually exclusive for a good ride......

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post #7 of 19 (permalink) Old 07-19-2019, 11:10 AM
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12.5 in tire on a 12 in wide rim? That tire is designed for a 8 in wide rim or there abouts. Load will be greatly reduced in a rim that wide and it will look just stupid.

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post #8 of 19 (permalink) Old 07-19-2019, 11:16 AM
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Quote:
Originally Posted by tsconver View Post
Load will be greatly reduced in a rim that wide and it will look just stupid.
For whatever reason, that seems to be the goal sometimes.

Maybe if we start telling people that the brain is an app, they will start using it?

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post #9 of 19 (permalink) Old 07-19-2019, 01:24 PM
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Quote:
Originally Posted by tsconver View Post
12.5 in tire on a 12 in wide rim? That tire is designed for a 8 in wide rim or there abouts. Load will be greatly reduced in a rim that wide and it will look just stupid.
My neighbor has a set. Those tires are made for a 8" to 10" wheel I believe. He's got them on 10's, and I give him good natured grief about them all the time.... They look (imho) too wide on 10's. Can't imagine how you'd ever even get the bead seated on a 10 ply (E) with a 12" wheel. Even when it's done, running low air pressure with the bead spread that far, is just playing with fire. I know we see it all the time, but it still surprises me that tire/wheel shops will mount tires on wheels that are not spec'd to take them. But the wide wheel/narrow tire thing seems to still be very popular. To each their own.
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post #10 of 19 (permalink) Old 07-19-2019, 07:43 PM
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Quote:
Originally Posted by 6401nohl View Post
Can't imagine how you'd ever even get the bead seated on a 10 ply (E) with a 12" wheel.
If you use starting fluid you can. If you use a lot of starting fluid, and inhaling a bunch of it, the result may even look good to you.

I may have to try that. I like the smell of ether.

Maybe if we start telling people that the brain is an app, they will start using it?

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post #11 of 19 (permalink) Old 07-19-2019, 08:22 PM
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Seen a stretched rim truck yesterday. Canít imagine why anyone would want to do that to a vehicle. Horrible look.

And 22Ē rims too boot donít help. The smaller the sidewall the worse the ride comfort wise. And donít like the looks of 22Ē on a truck.
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post #12 of 19 (permalink) Old 07-19-2019, 10:03 PM
 
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Originally Posted by Aburdett View Post
Seen a stretched rim truck yesterday. Canít imagine why anyone would want to do that to a vehicle..
Easy, driving around with your moose mirrors engaged is only entertaining for so long.
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