Tire air pressure

[lpennock]

Sorry to resurrect an old thread, I just installed aggressive ATs on my truck. Size 315/70R17.
The installation shop put them at 40 psi.
I notice that after 100 kph, there are vibrations on the right side... These are side to side. I was told that perhaps the tires were over inflated. So far we've checked the balancing twice.

The 315.70r17 has a load rating o 2685@40psi or 5370 for the GAWR. How does that compare to your placard rating?

Could be a slipping belt. I.E. a defective tire.