We had to have our front tires replaced under Michelin's warranty. We were getting a vibration at 60-68 mph. Nothing seemed to help, balancing or shocks (Prevost replaced the Bilstein shocks for new Koni shocks under warranty).
The invoice was showing $1,008 per tire as they are 365's. My understanding is that Michelin is the only company that makes the 365. We have 365's on the front and tag axles, 315's on the drive axle.
Listed from the FMCA site (365/85R20 XZL TL 164G MI U2)
Base $1,817.04
Invoice $1,053.88
Fet $35.4
MM.