Time to replace the tires on my wood hauler / trailer tower / family road wagon / bad weather commuter, and I want to switch from the standard OEM M+S road tires to an A/T type tire. I understand all of the basics, 275/60R20 114S, load range / ply rating, etc. No need for help, there. But the one that has me tripped up is the load rating. The OEM tires are marked 2601 lb. @ 44 psi, but they're also marked "STANDARD LOAD", which seems to be a contradiction. Standard Load, or "SL" tires are to be rated at a max 35 psi, if I believe Al Gore's Interweb. Yet here they are, on my truck... "Standard Load" tires rated for max load at 44 psi. The door sticker has inflation listed at 39 psi, so a tire rated for max load at 35 psi seems a poor choice, for this vehicle. What am I missing, folks?