cooling system (fan question)

[Hank70SS]

Originally Posted by carpoor

The fan blade you want is a 3947772, and the clutch you'll want to use is a Hayden part # 2747 HD unit. It will will run nice and cool, plus damn near last forever.

Thanks, didn't have the numbers handy.

You can find the 772 fan on ebay. If you don't care about date codes they're not too expensive, mine is a 1973 fan. I replaced a flex fan with a 772 and the Hayden 2747 clutch.