Tires and their pressures

The door sticker should cover the GAWR. Are you certain you are not over the rating? What pressure does the door say? What does the scale say?

But quite frankly I think the tires are defective. I recommend top line Goodyear.

Inflation pressures, they always seem to be a problem and no one likes the recommendations from the vehicle manufacturer.

The vehicle manufacturer has the sole responsibility for setting Original Equipment recommended cold inflation pressures. Those pressures are MINIMUM. If the vehicle manufacturer sees a need to provide optional recommended inflation pressures they will insure those options are printed in the vehicle owner’s manual and on the tire and load information placard.

This is verbatim from USTMA standards: Inflation pressure recommendations may also be determined based on the tire manufacturer’s specifications, which define the amount of inflation pressure necessary to carry a given load. These inflation pressures may differ from those found on the vehicle tire placard or certification label. However, never use inflation pressures lower than specified by the vehicle tire placard, certification label or owner’s manual. Nor should inflation pressure exceed the maximum pressure molded on the tire sidewall.

Cummins12V98 wrote:
"Ideally you should know your weight loaded and unloaded on your truck axles, and air them to the tire manufacturers load chart"

For God's sake Margaret, you really should not be spewing all that cannon sense nonsense.

:B :B :B :B :B

"Ideally you should know your weight loaded and unloaded on your truck axles, and air them to the tire manufacturers load chart"

For God's sake Margaret, you really should not be spewing all that common sense nonsense.

Ideally you should know your weight loaded and unloaded on your truck axles, and air them to the tire manufacturers load chart, assuming you can find one. The numbers on your yellow tag have nothing to do with ride comfort, they represent the max load that axle with those sized tires at that pressure is rated for.
If you change brands of tires that are the same load range and the same size as OEM that yellow tag is still valid.

memtb wrote:
The vehicle manufacturers (virtually all manufacturers) put the tire pressure recommendations on the door sticker for ride comfort. The manufacturers compete for best ride, soft tires help in this aspect. It is up to the vehicle owner to adjust tire pressure according to his/her needs! memtb

Which is exactly why Ford got their gonads in a vice with their OEM Firestones about 20 years ago. Putting =whatever= tires on Explorers and Expeditions and had the tires placarded for only 28 lbs. Then they wonder why tires were exploding and they were rolling. Had I had one, I'd've said to inflate to sidewall pressure and F the placard.

Lyle

Most tire shops and service centers go by the door sticker--and it's a bad idea because it doesn't take into account your actual load and whether you've switched from P-metric to LT (surprisingly, LT tires require more pressure than P-metric for a given load).

The Tire and Rim Association sets the standards you're looking for.

Look here for the inflation / load values for your particular size and type of tire:

https://tirepressure.com/tire-sizes

or

https://www1.prodemand.com/Content/Pdf/tg_passenger_load_inflation_tables.pdf

The vehicle manufacturers (virtually all manufacturers) put the tire pressure recommendations on the door sticker for ride comfort. The manufacturers compete for best ride, soft tires help in this aspect. It is up to the vehicle owner to adjust tire pressure according to his/her needs! memtb

Sounds like under pressure and/or over loaded tire issues.
AS suggested drop by a set of CAT scales and get your trucks separate axle weights.

You need better tires. Try Michelins.