For those with a Dually tow vehicle

[KRUEBBE22]

Originally Posted by vipermanden

What tire pressures are you running in your tires when you are towing, and when you are not? I have been going with the 80 psi in the front and 75 psi for the rear wheels when I am towing, and then go with 75 in the front, and 65 in the rears when not towing, and I measure my tread depth wear with a tread depth micrometer, and it still shows I am wearing more in the middle of the tire indicating that I am running with too much psi? I'm thinking I should stick with my towing numbers for safety, but then maybe go down to 70 in front and 55 in rear when not towing? What do all of you do? Thanks

I have a RAM 3500 dually and I run 80 in the front and 65 in the rear which is the factory recommended psi. I maintain those pressures whether I'm towing my 5er or not.

[Wally Dad]

Originally Posted by topjustice

My Ford dealer said to go by whatever the sticker says whether towing or not. Mine is 75 front and 65 rear. Works fine for me.

Ditto here.

[sdetweil]

I do 72 front 60 rear, towing or not. Door sticker days 75/60 for the max rating
2012 ford f350

[Arvis]

Personally I just look at the sticker inside the door post and run the PSI recommended. That has always worked great for me.

[vipermanden]

I am going to go with 75 in the front no matter if towing or not, and then 70 in the rear when towing, and 60 in the rear when not. It seems to ride much smoother in the rear with the pressure at 60. Since you have no weight back there, and 4 tires.

[tractor]

80 in the steer at all times. 65 in duals. When not towing I run duals at 40 #. Been doing this for years. Got 86,000 out of last set of tires and never rotated. 50,000 of those miles was towing a 3500 rl.

[Ps6m]

I run 80psi all around, hard tires run cooler.

[Bob450]

Max pressure it’s says on the inside door is what I run year round
80 on rear and 65 on front. SWR f350

[boat391]

We run 65 psi front and rear never change. That what tire dealer said to do. Never a problem and have had great wear and very even wear. I do take it in and rotate them every 6 to 7000 miles and have air pressure checked with oil change. If I see something not looking correct I get out my tire gauge and pull the old girl into my shop. I run Toyo tires M-55’s

[whutfles]

On my 2012 Ram 3500 DRW, I run 70 front and 65 rear in the tires when towing. I also use Firestone air bags with 45 lbs when towing. My hitch weight is about 3200 lbs.

When empty I run 65 in the front and 55 in the rear and 20 in the air bags. If I was going to be hauling any lite loads while not towing, I would leave front around 68 and rear 60 to 62. My outside rims are polished and inside duals are not. So once a year I rotate the front side to side and the outside rears side to side. The inside rears have never been moved. 41,000 miles with good even tread. Starting to weather check a little on the outside so that is what will probably cause me to replace them.

[goxley11]

My 2016 F350 calls for 75 psi front and 65 psi rear. I keep the pressures at that setting whether or not I am towing.

[dsttexas]

Vipermandin said: "My B&W 25,000 pound hitch is as far forward as I can place it, putting the center of the tongue weight just in front of the rear axle."

I did research on the B&W Companion for Chevy puck system installation, and the word from the experts is the three positions to mount the brackets on the companion base can be chosen without regard to weight before, on or after the axle. This is due to all the weight being fairly equally distributed between the front and rear puck contacts regardless of the position of the bracket mounts.

etrailer.com is a great source for really technical questions on hitchs.

My 2017 Chevy 3500 SRW long bed shows an added 300 lbs on the front axle when I weighed with and without trailer, and my bracket was set in the rear most position to give me lots of room accessing my storage box. This also gives a few extra inches of clearance between rear bed tailgate and trailer.

[vipermanden]

dsttexas, since I have an 8' bed, and could chose any position on the B&W, I chose the most forward position, to make sure my CG was forward of the rear wheels, to give me even more control of the 5th wheel. I'm thinking of the trailer pulling days where the trailer wags the dog. I just wanted every inch i could get to be in my favor. If it does not make a difference to etrailer.com, then so be it. But it makes me feel better! :-)

[paulinbaja]

When I purchased a set of tires that would be used primarily for towing I contacted the manufacturer and they said awlays follow the door sticker. He shared that their engineers develope the standards for safety.

[CT Wanderer]

I run the same pressure whether towing or not. Inflate to the pressure on the door sticker and have never noticed any uneven wear or handling issues.
Trying to picture those who change pressures for towing or not, do you do this when camping a few nights in several places and towing in between?
I have 60,000 miles on my tires (at least 20,000 towing) and they still have a lot of tread left according to my local tire guy. Looking at replacing next year as they are going to be aging out.

[vipermanden]

I don't change the pressures when we are on trips. If there was a real fast way to do it, I would, but usually don't lower the pressures until we are back from the trip, and then I am just using my truck to do errands etc.

[Pops8]

Originally Posted by vipermanden

Well I wanted them to compete with my wife? :-) No, seriously, when I drop 3,000 pounds of tongue weight on the back of the truck, it instantly levels everything out real nice. You can see the rear end squat quite a bit when I lift the front jacks up, and let all the tongue weight come down on the trucks rear end. My B&W 25,000 pound hitch is as far forward as I can place it, putting the center of the tongue weight just in front of the rear axle. I guess i should try 75 in front, and 65 in rear and see how that works. Just in case, I have the Yokohama Geolander A/T 235/80 R17 tires. This is what the sticker on the front door says my tire pressure should be for the truck. I am assuming this is just with the truck empty, so that is why I went with 80 for the fronts, and 75 for the rears?

Actually the sticker psi should be for max load.

[Phil P]

Hi

Your wear problem is not pressure related.

I run the door post pressure and I have the tires rotated every oil change and they wear evenly and all tires except the spare ware out at the same time. 50% of my driving is unloaded.

I am on my 4th set of tires and getting an average of 60,000 miles per set.


Phil P

[vipermanden]

I was always told that if the tread is worn more in the center than out to the sides, then you are running too much pressure, and vice versa if the center is worn less, than you were running too low on pressure. The only caveat to this would be the outside edge on the front tires from making turns. So that is why i thought I was running too high using 80 in front and 75 in rear when towing, because most of my driving is towing the 5ver, except when we are unhitched and driving around each place we visit. This next trip I will be going back East, and will be putting 6-7,000 miles on the 5ver, and probably 7,500 on the truck. I will see if running 75 in front, and 70 in the rear makes any difference on my wear?

[packnrat]

as to tire psi. read the sidewall of the tire. that is the real numbers you need to use. not the sticker on the tv, those numbers were for the factory installed tires ONLY.

as to air bags added to the rear of the tv. they are great to have. levels out things, and can improve the ride as felt by the butt tester.