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Those must stick WAY outside of the wheel wells. Cool.

 

What does the sticker on your truck say the correct pressure is?

 

If he went from P-metric to LT the door sticker is irrelavent.

 

I run mine at 45 for daily use and bump up to 65 when towing. I'm on E load tires.

 

Now about 3k into my second set of LT275/65-18 BFG KO2s. I have experimented with a wide range of pressures loaded and unloaded. Trailering I’ve settled on front/rear 50/50 psi. For max unloaded mpg 50/45. And for comfort unloaded 45/42. What is right? I do not know. This should be educational.

 

Sorry. Yes that would. Corrected.

 

Holy what is with all this high pressure in the tires??
Average grocery getter pickup just enough to keep the sensor off 35psi is enough.
You want to tow and haul stuff heavy then add up to the tire limit.
Teeth will be chattering at 50lbs.

 

Depends on your load rating. I'm running LT tires, C load rating, close to stock size, and I just bumped them up a few psi. Recommended pressure for the original P-rated tires was 33, I run the LT tires at 36.

 

The right psi for any tire results in even contact and even wear from side to side across the tread. You can get close by chalking the tires, or driving through a puddle of water, and seeing if the resulting tracks have any missing spots in the center (underinflated, so you're riding mostly on the edges of the tread) or at the edges (overinflated, so the edges get lifted and you're riding on the center of the tread). Get closer by taking tread measurements every few thousand miles to see if the edges or center of the tread wear faster. No need to be overly obsessive about it; 1-2 psi in either direction won't make a noticeable difference.