Regardless of tire brand/quality, even a cheapo tire will wear true on a truck that is in optimum shape.
In any situation where a tire, or pair of tires, is not wearing evenly, it is ALWAYS a fault with the vehicle.
Some tires are made of harder compounds and have solid tread ribs that will withstand this odd wear pattern a while longer, but the odd wear will sooner or later become evident; softer tires or more open-treaded tires will exhibit it a lot sooner.
The most likely cause of "dipping" "cupping" "wash-boarding" "chopping" is poor or wrong shock-absorbers.
Weak springs or any weak or broken component of the spring system will also cause it.
Front-end geometry of some models of trucks are such that no tire will ever wear good; 1994 and later Dodge 4x4 are a prime example of this.
Although not a problem with full-size trucks, almost without exception, the light-weight passenger cars of the last thirty years all will sooner or later exhibit dipping of the tires simply on account of the car not being heavy enough to keep the tire firmly planted on the ground.
I recently saw a slow-motion video of the point of road contact of a pricey name-brand tire on a pricey luxury sedan and I was scared to go over 30-MPH for weeks.
I will get flamed for certain, but I will go out on a limb and suggest against rotating these, or any, tires; all you will accomplish is to ruin the other two.
If you want to straighten out those tires, first address whatever mechanical situation that is causing the problem; then, have the tires "trued" on a genuine tire tread trimmer.
Although it looks scary to have your high-priced tread cut off and falling to the floor in shavings, the resultant roundness of the tread surface will last much longer, plus have better traction.
My final bit of wisdom is:
If the truck rides and drives good, just ignore it and live with it; it is very possible that you could spend several hundred dollars and things only be worse.
