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KW W900 with a 15l 550 hp Cummins in it. Fans are overdriven so are spinning 1.5 or so faster than the engine.

Or a gasser, IIRC they had 460s in the std and dually .I am unsure if the fan clutch is directional.

It turns the same way as the engine turns. D-Max fan turns opposite engine rotation.

Steel and aluminum bend when they strike things, yes, sometimes the radiator core gets damaged. Plastic/nylon, once compromised, come apart. On the other hand, I have seen trucks come in with cracked/broken composite fans that when the customer was notified, they just said, yeah, it's been like...

I wouldn't say no chance, seen plenty of them crack then fail horribly. I had one explode on the dyno, took out the radiator, upper and lower hoses, shroud and a mess of wiring. Had the hood have been closed, pieces parts woulda put holes in the fiberglass hood. Dam thing took out my coffee cup...

This? https://www.steelsoldiers.com/threads/nylon-radiator-fan.119295/

The fan on a D-Max turns opposite engine rotation, wrong way for a deuce.