2011 F350 Super Crew 4x2 unloaded ride quality

F5Pro wrote:
Guess I am looking for a happy medium without undue tire wear fron over inflation or under inflation. I suppose I can air down until the tmps light shows up and then up it enough to shut it off. Thanks.

You're not listening to us. While understandable that folks don't understand stuff, it is weird when those that ask questions about what they don't understand won't even consider reading their owners manual or other documentation that supports the answers they're being given.
Happy medium for what?
You could have anywhere between 3klbs and 8klbs on the rear axle depending on what your hooking or hauling.
And you Don't have tpms, so no light will go off. But you'd know that if you spent 5 minutes reading your owners manual or 5 minuts adjusting your tire pressure.
And you apparently haven't spent 5 minutes learning about tire pressure vs load either, as suggested.

On second thought, the door sticker IS the right answer for you. That's why they put those stickers on vehicles. For owners who don't know or don't care or don't want to learn, they have an easy button. Not a best button, just an easy button.

F5Pro wrote:
Guess I am looking for a happy medium without undue tire wear fron over inflation or under inflation. I suppose I can air down until the tmps light shows up and then up it enough to shut it off. Thanks.

I repeat

"Looks like you know your weights. Now use the weight/inflation chart for your tire size and load range. Add 10psi to front and 5 psi to rear over chart numbers. Now doing so you will have the best tread wear, stopping and ride."

Guess I am looking for a happy medium without undue tire wear fron over inflation or under inflation. I suppose I can air down until the tmps light shows up and then up it enough to shut it off. Thanks.

OP ha it all wrong. Mine rides like a log wagon, not a wheat truck. ;)

F5Pro wrote:
Have the truck now. Door sticker says 60 psi in the front and 80 in the back. Tire shop that swapped my tires onto the new truck did 55 and 70. On smooth pavement it rides pretty well, only a little worse than my max trailer tow F150. On rough pavement it skitters and jitters around and makes me slow down some. I'll have to reserve judgement until I get my topper back on.
Front axle #5000, rear #6730.

Cornfusing post...
You swapped the E tires from the 1/2 ton to the new 1 ton...got it, must be nice tires.
Truck is empty now, but going to put a topper on it, rear tires at 70psi and it skips on rough pavement bad enough to have to slow down...makes sense since its too high of pressure.

Reserve judgement for what? 6730# rear axle? Rated weight I presume? Since if you had 6700lbs on the rear axle now it wouldn't skip around.
So drop the pressure to 35-40 psi in back. How does this even sound right if the heavy front end has less psi than the light rear end and you're waiting to add the equivalent of 10 bags of dog food (the topper) to see if double the tire pressure you need will feel good?

THIS is why mfgs put TPMS on passenger vehicles, to save people from themselves who can't even conceptually understand the relative weight of objects.

F5Pro wrote:
Have the truck now. Door sticker says 60 psi in the front and 80 in the back. Tire shop that swapped my tires onto the new truck did 55 and 70. On smooth pavement it rides pretty well, only a little worse than my max trailer tow F150. On rough pavement it skitters and jitters around and makes me slow down some. I'll have to reserve judgement until I get my topper back on.
Front axle #5000, rear #6730.

Looks like you know your weights. Now use the weight/inflation chart for your tire size and load range. Add 10psi to front and 5 psi to rear over chart numbers. Now doing so you will have the best tread wear, stopping and ride.

Have the truck now. Door sticker says 60 psi in the front and 80 in the back. Tire shop that swapped my tires onto the new truck did 55 and 70. On smooth pavement it rides pretty well, only a little worse than my max trailer tow F150. On rough pavement it skitters and jitters around and makes me slow down some. I'll have to reserve judgement until I get my topper back on.
Front axle #5000, rear #6730.

F5Pro wrote:
Good point. I looked at the tires on my F150 and it said about the same thing: max load pressure was 80, but the truck didn't say that-only 35 front and rear. I haven't seen the 350 yet to compare. Thanks.

Nothing to compare. The "sticker" on the door is going to be for max load and say 80 psi or something close. Unless the truck has the wrong tires or big wide tires (not likely on a 2wd), they too will say 80psi (possibly 65psi but not likely).
But the truck doesn't weight "that" much more than your 150 that you apparently have D or E load tires on, so weight vs load still applies the same whether it's on a F350 or something from Uzbekistan.

F5Pro wrote:
The guys at the local tire shop mentioned the unloaded ride to me and told me that many of the owners of heavy trucks do lower the tire pressures to help with the ride. However the penalty for that is abnormal tire wear from under inflation.

That is a complete BarbraStreisand statement!

Tire wear is BEST when proper inflation is used based on weight.

Tell me my tires have uneven wear. 65-68psi loaded with FULL RAWR and 35psi running solo.

Good point. I looked at the tires on my F150 and it said about the same thing: max load pressure was 80, but the truck didn't say that-only 35 front and rear. I haven't seen the 350 yet to compare. Thanks.