Well...new to LT tires and just got the KO2 in the stock 275-70-16 size. Love the tires, but still confused about what air pressure to put in them after reading all the threads that I can find. Right now I have 45 psi in them and they ride great, with around 5 to 6 psi increase between cold and hot so the 45 psi seems ideal. However, in looking at the tread contact with the ground, it appears that the outer 1/4" of the tread block is not firmly touching the ground, which seems to indicate that the air pressure is too high (or is the KO2's tread pattern supposed to curve up in the outer portion of the tread and not be entirely flat?). But this contradicts with the Guideline for the Application of Load and Inflation Tables referred in some of the forum threads on the tire air pressure. According to that inflation table, my OEM P rated tires at 32 psi support 2480 lbs. but my LT rated tires at 45 psi only support 2295 lbs. so I'm now supporting less load than what the OEM tires at the factory spec'ed tire pressure are designed for. So am I supposed to air up based on the info from the inflation table, or air down based on the tread-to-ground contact, or stay where it's at because the 5-6 lb. psi increase between cold and hot is right on?
Just for reference, my '99 LC is pretty stock with no extra added weight except for the normal camping gear and a family of 4.