Tire pressure

My door sticker says 65 psi my load E tires say max 80 psi the tire chart for my tires and weight is 65 psi and the rim are stamped 65 psi MAX. I run my tires at 65 psi. IMHO look at the tread contact with the road if it is flat not cupped in or out but flat to the road you are good to go,

I actually could lower the pressure in the rear tires. I doubt they are maxed out as I never drive with full fresh water tank (630 lbs) or full holding tanks (potentially another 600 lbs). Although I did replace the fridge with a larger model.

Anyway my main concern is driving with the front tires flexed on bottom as much as hey are. Does it look excessive to you?

The original tires that came oem were Goodyear 159. They had stiffer sidewalls. They were stiffer all around. They all said max pressure 80psi on the tires.
I've always gone with the what the door sticker said wich says 65 front 80rear.
The new tires just seam pretty soft on Front with 65psi in them. Don't want to ruin them.

I have done some work rebuilding the sleeper above the cab from water damage. Added some weight from wood but it couldn't be more then 120lbs.

80 is for max load in each tire. Look at the door labels from Ford and your RV builder. The GAWR for Front is a number that divided by two comes up to 65PSI Single. Likewise, the GAWR for the Rear axle, divided by four comes up to 80PSI Dual.

To put it another way, four rear tires at 80 is the max load for that axle. It takes only 65 front to reach the max load for the front axle. Chances are your rear axle is close to max, but the front is not and no need to run even 65.

Home Skillet wrote:
The door sticker is for OEM tires.

Go off the pressures recommended on the sidewall of the tire.

I'm gonna disagree!
OP says the tires are OEM size and rating, therefore he should use the pressures listed by the vehicle manufacturer.
The tire manufacturer has no idea what load will be placed on the tires, which is why they cannot state the pressure required, simply a maximum pressure for the maximum load.
Of course, the OP could use the standard load/inflation pressure tables but would probably end up at 65/80 F/R anyway.

The door sticker is for OEM tires.

Go off the pressures recommended on the sidewall of the tire.