Air Pressures while towing

[CUMMINZ]

I'm sure I will get some grief here. I would like to show you guys some photos just for reference. I see some of you run shorter pressures on rears and this is why I do not. For short periods depending on terrain and unlevel asphalt you could overload one of your rear tires. Look at bulge in inner tire. These are 10 ply 17s. I run 14 ply 19.5s.

 

[JR]

Assuming the entire load is on one tire like in the pictures above, you'd have to weigh in at over 6k on the rear axle to justify max pressure for an event that might happen.

 

[Cummins12V98]

YAWN

Tires are designed to carry loads for short periods. Same thing with a tandem axle trailer.

 

[AH64ID]

YAWN

Tires are designed to carry loads for short periods. Same thing with a tandem axle trailer.

Like a static load vs a dynamic load??

 

[GAmes]

I thought they were pictures of the additional wear in the center of the tires.

 

[Wiredawg]

I have 19.5s on my 2017 5500, so my air pressure numbers are a little different. Truck weighs 12.2K Lbs with 112 gal fuel, me, my wife, and dog. I dont change pressures loaded and unloaded. 95lbs front; 90 lbs rears. between 90% to 95% to towing heavy duty cycle.

When I get back on my feet from surgery, gonna rotate tires, side to side, and install my Centramatics front and rear from my 09 4500. They really work great.

Vivian and I put 15K miles on this truck and 65K miles on our 09 4500 RV across the country and into Canada. Some say the 4500/ 5500 ride rough, but we're fine. My friend has 2018 Max Tow Ram 3500 with air ride, and ours rides about an 8 out of ten and his rides 9 out of 10. A lot of the ride IMHO is air pressure of the tires. Plus, 14 ply rated 19.5s have much more rigid sidewalls.

Happy Trails, Ron