correct tire pressure 99 F350 DRW

[rickmondo]

please lend some experience/help on correct tire pressure when trucks loaded with a 5th wheel, 8400 Pds dry?

The door emblem says: 40 psi back and 65 front, but this seems high.
Truck has stock size tires, 235/85-16 E rated

currently tire gauge reads 55-fronts and 50 & 55 back outside tires

Truck is 99 F350 TD DRW Crew cab 4x4 long bed


Thanks much for your help


Rick
Auburn, CA

[TANK'S 250]

Loaded,..it's tough to say exactly.

BUT...read post #8 in my link,..it might help ya.

http://www.powerstroke.org/forum/gen...nna-learn.html

[2x6 bulldog]

I ran 75psi in the front and 55psi in the rear loaded with a 13.5k fifth wheel trailer. I got the best tire wear that way.

[bryanbrown]

I always run 85-90. My truck isn't 4wd, but my dad's is ('04CC 4wd f350), and if his aren't at 85 in the front, they look like their flat. on my '01, I've gotten 40K miles on a set, hauling all the time.

[WEWILLE]

65 all around would be fine, but go with what the door says

[Texas6.0]

Originally Posted by WEWILLE

65 all around would be fine, but go with what the door says

You should only go with what the door says if your truck is running the same size AND make/model of tire it came with from the factory. If it is not, you need to go by what the tire says.

[bpiracing]

80- 100 psi is what we run, great wear and we pull a 10 ton gooseneck

[TurboSevenThree]

I run 75 in all six, max on the tire is 80 so I run 75 cold. They read like 82 when warm/hot that way. Tires are wearing perfectly. They're 235/75/R16's I believe..

[Hazcat@charter.net]

I am running 75 front and 70 rears pulling a 15k goose neck, or my 10k drag behind covered car trailer. wear seems to be about right.

[quequeg37]

i run 60 all way round. with load 65 in rear. guess it depends on manufacture and what you see happening in your application. sometimes the only answer is what works for you. all the rest are guidelines to start at.