P/U Tire Inflation ?

FREEDGUY wrote: They "call" it a 1/2 ton, dare you to look up the specs on a 5 year old "150" vrs. a 15-20 year old "150"  . I've been told by several independent shops that the 1-2-3 '50 series have dropped in "hauling/suspension" ratings by "1". A current F 150 has the same "rating" as a Lincoln Navigator .  And I don't recall ever asking about "MAX" pressure in my original post  ?? The upcoming election has gotten you in a tizzy

Your very first post/question asked about the sidewall versus the sticker. So asking about MAX pressure is EXACTLY what you did, you just didn't know it.

That's a common spread of those two numbers. Assuming the sidewall is the higher!    If not that'd be interesting.

You beat me to it Jay. I was just gonna say thing.

steve(ill) wrote: Yes. but even from the FACTORY the numbers dont have to match... We have a FLEX that has tires RATED at 1800 pounds each at 51 psi.... the door sticker says set at 36 psi and 1600 pound load.. No reason to set the tires at MAX 51 psi.... 1800 x 4 = WAY MORE than the GVW of that vehicle..... with factory tires.

100% agree.

While it may seem like the tire co knows more, the correct answer is go by the door sticker. The manufacturer spends years testing and developing the vehicle to find the best vehicle performance and tire pressure reflects this. The tire co just builds tires to carry a load. Since their tires fit many different vehicles, that's why they have a maximum air pressure. You can put 20 ply tires on a 1/2 ton and air them up to maximum, but that doesn't increase the load capacity of the truck 1 ounce. All you're doing is making your vehicle ride rougher. 

Don’t think he’s saying that, he’s a smart guy and mechanic. Seems if the door says 50 and you bought tires with 35 max you done bought the wrong tires.

I dont think i have ever put the "factory" brand of tires back on a truck since 1989... My F250 came with Michelens and got 80K miles on the original tires, so i did that again... You normally put the same SIZE tires back on the truck, but not necessarily the same BRAND.  Factory is installing what they bought in BULK and got the BEST DEAL on that year.

Exactly... you always have BETTER rated tires on a vehicle than the door stick says... Would be stupid to put under rated tires on.

truckerfarmer wrote: So your saying if the door tag says 50# and the tires say 35#, we should air them to 50#?

if your door tag says 50 and your tires say 35, that means you put a tire on that can’t handle the weight of your truck. In other words you have the wrong tire for the vehicle.

True, all tires aren’t created equal, but putting heavier tires than the originals doesn’t increase your payload. You’re still carrying the same weight so increasing air pressure only stiffens the ride.