My brand new radiator... destroyed.

I think the reason we can get away with solid mounts in old Mopars is we're dealing with V8s which normally produce no vibrations when running, compared to say an inline-4 or some V6 engines.

I upgraded the motor mounts on my Jeep to the "Brown Dog" type, not solid but they hold the engine very tight and transmit more vibes. However since it's an inline-6 engine I don't feel anything inside except at start-up or if I accidentally lug it in high gear.