Hi guys, tomorrow I will be towing a dump wagon filled with #2 stone for my neighbor...

What PSI would you suggest as a starting point for the tires ? Currently for street use (non towing) I run mid 30's I know that won't be enough just not sure how high to go..

Tire size and wheels are in my sig if it mattters........He didn't say how big the trailer was that he rented....One thing is for sure I will not let the pit over load it..


Thanks, Mike

 

In your driver's door jam, there should be a sticker with PSI rating for front and rear. It should be somewhere around ~70-80PSI.

 

Thanks..

I wasn't sure if that applied to 35x12.5 tires or not ?

Looks like the Nitto site says 65psi max, I'll try 60 as a starting point and see how she does..

 

Nope, it certainly does not. Factory door sticker is only for the factory tire size. Disregard for aftermarket sizes.

See attached, I pulled it from a load inflation chart published by Toyo tires. These are TRA standards, so they apply to all brands.

At 40 PSI your tires would support 2,625 lbs each, or 5,250 lbs per axle. Your front is safely under that with the gas engine, and the rear should be around 3,100 lbs empty. So unless you're loading more than 2,000 lbs on the rear axle I'd stick with 40 PSI. Adjust as needed, 50 PSI would support 6,000 lbs on the rear axle.

 

Good catch on the different tire. Didn't even cross my mind as I always run similar tires to stock, but yes; you shouldn't go over 65 PSI in those tires according to the manufacturer. 60 would be fine for a lot of payload. Usually, you run out of squat on a 250 before you're in any real danger of doing tire damage running those kinds of pressure anyways.

 

The tire itself has the psi ranges stamped on it.

 

Yup, I'm the same way. Easy to miss, as the OP's tire size wasn't mentioned in the original post, and signatures aren't visible on the mobile browser or app.

 

I go straight to the max when hauling heavy.

I've never thought to myself "gee, I'm glad I don't have too much air in my tires" but I have wished I had aired them up before I left.

You could always let some out once you are hooked up if you wish....

 

Thanks for the help guys I really appreciate it..

 

no worries with 2.7 ton in the wagon the truck pulled it just fine..




I thought he was going to rent a bigger trailer, I would have preferred a tandem axle myself..

 

You didn't tell us your dump trailer was built by Tonka

I wouldn't have worried a bit hauling that at what ever pressure made you happy. When you said dump trailer I was thinking 5-7 ton.

Less than three is half-ton territory

Good on you for helping your neighbor

 

The way he talked Mike I thought we'd need a F350 dually !

When I saw the trailer I thought, "we needed my truck for this" ?

As it turned out his F150 didn't have electric trailer brakes or something so the rental company wouldn't let him have the trailer......we did need my truck after all

 

Dang man. You're faking us all out over here. I could've pulled that with my mini-van!

 

I was expecting something different as well based on our phone convo's..


We did get 2.7 ton in that little wagon though, she was about full...