Yes, load will affect tire wear based on inflation pressure. Unloaded the rear tires need less air pressure because the tire is supporting less load. What is on the sidewall is for rated load/pressure. In some cases I'll over-inflate tires to keep temps and tread wear good.
The BFG A/T's I've got on my toy hauling truck are D tires and are 50 or 55psi on the side wall. To keep the tire temperature safe I have to run the rears at 65-70psi and I run the fronts around 60-65psi. This give the best tread life as well. If I run less pressure the tire gets far too hot and the tread wears on the outsides.
The BFG A/T's I've got on my toy hauling truck are D tires and are 50 or 55psi on the side wall. To keep the tire temperature safe I have to run the rears at 65-70psi and I run the fronts around 60-65psi. This give the best tread life as well. If I run less pressure the tire gets far too hot and the tread wears on the outsides.
