[Fulltiming]

Harry, most heavy duty trucks which use the same suspension parts as high end diesel pushers do NOT balance their wheels. I have tried it both ways and not found a significant difference. I have used the bags of balancing powder and that was a mess. Unless you have special valve stems with a filter, the powder starts plugging up the stems and can result in a tire going flat (been there done that).

If a wheel was so out of balance that it was causing issues, I would likely replace it. A tire can be badly out of round and again I would have a cow if they had just installed it. Currently NONE of my tires are balanced and I just had 6 of the eight replaced. It would only be the fronts that I would even consider having balanced based on my experience. Buy good tires, avoid tires from China which seem to have greater QC issues. To me, the money you save isn't worth the risk of the damage that can result when a tire comes apart. The closer the load rating of the tire is to loaded weight of the coach, the more care you should take with your tires but tires are a critical component.

After changing the rear six tires and going from Bridgestone 11R24.5 balanced to Bridgestone 11R24.5 without being balanced, I have not been able to tell any difference in ride or handling between them.