18x12 on 345 tire

Would 345's fit on a 18x12 rim?

Thanks

Tire Rack only shows 2 available 345/30-18's, the BFG g-Force Drag Radial, and the Michelin Pilot Sport. Both will fit on 12" wide wheels. Whether you can get a 14.1" wide tire under a 4th Gen is another matter.

:D I'm trying, thanks