The lockers are great. The suspension is great. More off-road oriented vehicles are great. GM missed the ball with the 30.6 inch tires. The restriction on upsizing tires will be off-putting to people who will actually buy this truck. I agree that 32"-33" tires are the sweet spot for this type of vehicle. And this truck has 30" tires. Too small. If it can fit a 285/70R17 without having to throw away that new suspension it should be a winner for the people who will actually buy this truck.
Dude, the truck isn't even out yet. None of us know what tire sizes can and can't be used with the ZR2. Saying that "Gm missed the ball" is getting ahead of yourself.