I have a 3500 drw and was wondering what pressure to run in the front and rear tires.

I pull a travel trailer that when fully loaded weighs about 8,500 lbs. I also use a Hensley hitch that adds about 150 lbs to the tongue weight. So I figured my total tongue weight is about 1,000 lbs (10% of 8,500 plus 150 for the Hensley).

I also have a topper shell on the truck. Don't know the weight.
I also carry about 300-400 lbs of stuff in the bed when I camp.

What air pressure should I be running in each rear tire? Remember, I have a dulley.
What air pressure should I be running in the front tires?
I want the longest tire wear (not necessarily the best fuel mileage).

 

I have a drw also if you open the drivers door and look on the door jams you will see the reccomended psi for the vehicle. mine is 65psi thats with the stock tires more than likely yours is the same. Hope this helps

 

Mine is 65 front,and if you are loaded all the time I'd say about 55-60 in the rear,I run 50-55 rear

 

unloaded, I run 65 in front, and 35-40 in the rear.

Loaded, I run 65 up front,and up to 65 in the rear, depending on the weight I am towing.

if you run the recommended air pressure in the rear (on the door), you will have a rough ride, and you will wear the middle of the tires very quickly.

 

I keep all of mine at 80. It is pretty ruff riding when I am just driving my truck but it is rare that I am every without a trailer! The door says one thing but the tires have their ratings as well! I always go with what the tire manufacture says.

 

Ditto, I go close to max tire pressure (as stated on the tire) when pulling. Seems to get better MPGs too.

 

Oh yeah a lot better on MPG's if you pull a lot like I do it is funny you can tell the difference in a tire that is 60 and a tire that is 80 the truck seems to wiggle a little and you do notice the fuel difference. Just makes sense there is less drag when the tire is at full pressure, you do suffer a little in the ride but the last I checked my dually didnt ride like a caddy anyway!!

 

80 front 75 rear.

 

You guys do realize that the rating on the tire is at MAX load......you don't need to run that all the time.

 

yeah I do know that. Not for sure if the others do! I stay loaded almost all the time so I just leave them at 80

 

2 MPG increase, from 50F & 45R.

 

maybe, but a 2 mpg increase still means a lot of miles have to be driven to make up for the cost of 6 tires

 

\

Yeah very true! I rotate mine like crazy and I have lucked out and have gotten about 100k on each set I have used, and NO I don't run them till they are bald.

So a few mpg increase makes all the difference when you run as many miles as I do.

 

Agreed, I have a SRW truck. I rotate with a spare every 5000 miles. I usually get 70,000-80,000 out of the BFG AT/KO's

 

I run by what the factory recommended pressures are listed on the door, in the glove box, or under the center console arm rest. Yes, they are max weight pressures so you can run lower if you want but I don't fool with it. The suspension is setup to run these pressures and you will get the best mileage out of your tires running these factory pressures. The real thing is as long as they have air in them and don't overheat causing a blowout due to low pressures and higher sidewall temps.