You would think so ...right?
From my experience (105k miles so far) the tires aren't made to the same tolerances as light truck tires. The run-out is terrible, with high spots and low spots. About the only way to balance one correctly requires shaving the tire, which doesn't work well on the traction tires like the Toyo 608z as you shave off all the siping. The fact that the tires have such low speed ratings should tell you a bit about how true they are. Some are rated as low as 75 mph, with most limited to 81mph.
One unique problem with duallys and stick on weights is that the back of the outer rear wheel is convex...thus any stick on weights tend to fly off due to centrifugal force. So with no way to balance that tire, it better be pretty true to begin with....which they typically aren't.
To counteract that guys like me tend to run hydraulic balancing rings like Centrimatics or Balance Masters, but they can only do so much when the tire is out actually of round to begin with.
Some try balancing beads or Equal inside the tire, but often those clump up due to moisture or can't offset how out of spec the tire is, and they'll do nothing for an out of round tire.
I'm a contractor, so traction at jobsites pulling heavy loads/trailers is pretty important. I have had zero luck finding a good combo of traction and ride quality in the 19.5" tires. You get one or the other.
Switching to these 20" wheels and 12 ply Toyo RT's has been the solution I wish I'd found 100k miles ago.
