GM Denali 3500hd tire PSI

[seanrmz]

Hello everyone, been looking around the net and YT for information about tire PSI for my Gm 2014 3500 hd Dually.
I see a mess of answers 60/70psi up front 60/80 on the rear.
I am just looking for a base line with some one who has a similar setup towing.

I have a cougar 30rls 2021

specs

length 35ft
GVWR 11k lbs
Hitch Weight 1,545 lbs

thanks

sean
https://photos.app.goo.gl/TkXgKQxLNbF3er8aA

[Texas Steve]

Look at the yellow / red / white placard inside your drivers door for tire inflation and loading information.

[seanrmz]

it says 60lbs for the rear, and my tires say 80lbs

which one do I use?

[Gkri]

Originally Posted by seanrmz

it says 60lbs for the rear, and my tires say 80lbs

which one do I use?

A particular tire can be used on several different vehicles with varying weights. The number on the door sticker is specific to your vehicle. The door sticker pressure may also be based on best ride quality, not best tire wear. Our GMC dealer has a device that gives a wear profile on the tires so we can determine if more or less pressure is needed.

[wiredgeorge]

The 80 PSI is the tires maximum load capacity rating. When not towing, the 60 PSI may make sense but when towing, the weight on the truck probably should be considered and I would crank it up to 80 PSI. That is just me saying this. No point in have Load Range E tires and not taking advantage of the load carrying capacity. When not loaded with your trailer, the placard described would be the go-to numbers.

[travelin texans]

Originally Posted by seanrmz

Hello everyone, been looking around the net and YT for information about tire PSI for my Gm 2014 3500 hd Dually.
I see a mess of answers 60/70psi up front 60/80 on the rear.
I am just looking for a base line with some one who has a similar setup towing.

I have a cougar 30rls 2021

specs

length 35ft
GVWR 11k lbs
Hitch Weight 1,545 lbs

thanks

sean
https://photos.app.goo.gl/TkXgKQxLNbF3er8aA

I had 2 GMC duallies while fulltiming with 2 different 16.5k lb 5th wheels, I ran 80 in the rears & 70 in the fronts.
If we spent significant amount of time in one place I'd deflate to 65-70 in all, I couldn’t tell much difference in the ride but the DW said she could so I did it. You know HAPPY WIFE..............
Tires always wore evenly, 2 different sets of Michelins I ran to 70k+ miles before replacing & if I hadn't been towing heavy most of the time could've ran them longer.

[Skillet173]

Have a ‘22 Chevy 3500 DRW and I run 80psi while towing

[seanrmz]

Thanks for all the input guys

[Skillet173]

Thinking you might have a yellow bike in trailer?

[rhagfo]

Do the math!
Most DRW state 65 psi for maximum rear axle rating, 80 psi will be over inflated for that weight.
OP has a light trailer between 55 and 60 psi will likely be just fine!

[travelin texans]

Originally Posted by seanrmz

Thanks for all the input guys

As you can tell tire inflation conversations will go on forever & you were asking about your truck. PLEASE don't ask about your trailer tires, that conversation just keeps going, like Buzz Lightyear says "to infinity & beyond!" or the Energizer Bunny just keeps going & going & going....
Now you've heard from both "max inflation" to
"max is way too much", now you just need to find what works for YOU & go camping.

[jadatis]

If you give tire-specifications, I will make you a pressure-axleload list for it.
Then you " ONLY" have to determine the axleloads in your use acurate.
The most tricky part in it all, and your responcibility.
Vehicle makers use GAWR's, assuming you dont overload, wich is forbidden, but dont mean it does not happen.

From tires I need sizes and loadrange, or better.
1. Maximum load or loadindex for single and dual load axle.
2. Loadrange, or better pressure behind At.
3. Speedcode would be nice.

[wiredgeorge]

......and so it begins

[rhagfo]

Originally Posted by seanrmz

Hello everyone, been looking around the net and YT for information about tire PSI for my Gm 2014 3500 hd Dually.
I see a mess of answers 60/70psi up front 60/80 on the rear.
I am just looking for a base line with some one who has a similar setup towing.

I have a cougar 30rls 2021

specs

length 35ft
GVWR 11k lbs
Hitch Weight 1,545 lbs

thanks

sean
https://photos.app.goo.gl/TkXgKQxLNbF3er8aA

What does the yellow payload sticker state for rear tire pressure? My guess is 60 65 psi for the rear. In 2014 GM DRW had a max GVWR of 13,025#. If you run 80 psi (sidewall max) with your listed 5er and not much in the bed, you will be way (20+ psi) for the load on the rear axle. This will result in poor traction on wet surfaces.

[travelin texans]

Originally Posted by wiredgeorge

......and so it begins

And on & on & on!

[jadatis]

Topicstarter, dont let post #11, #13 and #15 scare you of from giving more information.
Its not for no reason that tirepressure topics go on and on.

[travelin texans]

Originally Posted by jadatis

Topicstarter, dont let post #11, #13 and #15 scare you of from giving more information.
Its not for no reason that tirepressure topics go on and on.

I agree! Typically it's because what works or what that guy does isn't what works or what the other guy does so after a 1000 posts or more nothing ever gets settled or ever agreed upon.
I'll say this then done! It's not rocket science!
As long as the tires are inflated to within a reasonable inflation for the load being carried 5-10-15lbs won't make a bit of difference.
If they seem to harsh when not towing adjust them to some lower pressure then inflate when towing.
Not sure a spreadsheet with a entire list of information is necessary, but if that's what someone wants/needs then by all means create one or let someone create one for you, personally don't need/want one.

[rhagfo]

Originally Posted by travelin texans

I agree! Typically it's because what works or what that guy does isn't what works or what the other guy does so after a 1000 posts or more nothing ever gets settled or ever agreed upon.
I'll say this then done! It's not rocket science!
As long as the tires are inflated to within a reasonable inflation for the load being carried 5-10-15lbs won't make a bit of difference.
If they seem to harsh when not towing adjust them to some lower pressure then inflate when towing.
Not sure a spreadsheet with a entire list of information is necessary, but if that's what someone wants/needs then by all means create one or let someone create one for you, personally don't need/want one.

Well not so sure when you get to 15 psi too much. Had a neighbor that ran a couple log trucks. He found that by lowering his tire pressure from 110 psi to 90 psi he had far fewer tire failures. The tires got far fewer tread cuts at the lower pressure, which resulted in fewer thrown tire treads, and less blowouts.

[Badbart56]

Originally Posted by rhagfo

Well not so sure when you get to 15 psi too much. Had a neighbor that ran a couple log trucks. He found that by lowering his tire pressure from 110 psi to 90 psi he had far fewer tire failures. The tires got far fewer tread cuts at the lower pressure, which resulted in fewer thrown tire treads, and less blowouts.

We run 100 lbs all the way around on our trucks and trailers (Michelin super singles) and typically get 400K miles out of the drive and trailer tires. Usually about 160K-170K on the steer tires.

[travelin texans]

I said I was done then if you read post #18 & 19 it's a perfect example of what I stated, what works for one doesn't necessarily work for another!!
And it goes on & on & on!