My 2017 F350 CCSB SRW has 20's on it. The door has 60 psi front and 80 psi rear. On my 08 I ran 80 psi all around when towing. What do you guys run when towing 5th wheels?

 

My 2016 has 20's with the 5th wheel I run 80 in the rear, & 75 in the front. My 5th wheel max out at 14K with 2450lbs pin weight.
John

 

80 all round. Pulling @14K lbs.

 

The recommended ratings. 65 front, 75 rear for my 05.

Why try to out guess Ford?

The front's don't take nearly the load so they don't need the PSI...

 

80 rear 65 front.

 

80 rear, 70 front on my 2000 with 265/75R16 E rated tires. I also have OUO traction bars and AirLift bags to keep the power to the ground.

 

running 75 in the front and 80's in the rear.

 

Go with what the owners manual has for the tire size you have.

 

Since my truck payload is rated at 3500 and my pin weight is only 2000, I don't use the max of 65/80, but use 62/72 instead.

 

The tire inflation label is based on your trucks axle rating. If you are exceeding that weight then you need to increase the pressure. If not, why bother.

My tires on my 250 are to be inflated to 70lbs. Same tires on the 350 is 80lbs because of the higher axle rating.

 

What kind of tire pressure are you running when towing a 5th wheel with your F450.

bigdon68

 

Regardless of truck model, this is one of those many times I just follow the owners manual, door tag, etc. I'm not big on second guessing manufactures' guidelines.

 

In "RV world" (full-timers, old-timers, etc.), we use the pressures on the door sticker. You're not putting any significant extra load on the front axle when you hitch up. As others have stated above, this is not the time to try to out-think the Ford and tire engineers. This is confirmed by a retired automotive engineer and a professional tire guy on my other RV forums. By over-inflating the fronts, you also risk abnormal tire wear and reduced traction in wet conditions. On my DRW truck, I run 65 all around as posted on the inflation sticker (plus run an aftermarket TPMS system on the truck and the trailer).

Rob

 

I guess this is a good place to ask this question. I have seen a different tire max pressure on the door sticker than what is imprinted on the side of the tire from the manufacturer.
Why is it that we are all told to go by the door sticker?
Wouldn't the tire maker know what pressure the tire can hold better than the car maker that may have several different makes and models of tires on the same model car or truck and use the same specs for all the different tires?

 

When the tire company makes the tire, they have no idea what vehicle it's going to be installed on. The vehicle manufacturer knows everything about the vehicle specs and wheel loads, selects the appropriate tire, and specifies the pressure. The sidewall max pressure is only the maximum inflation pressure allowable for that tire.

Rob