Short Shaft Fan Clutch

Here is what I purchased. The Haden 2947 Mopar short shaft HD fan clutch and Derale 17117 standard rotation 17” fan. I’m going to have to grind the inside tabs of the fan to make it work, but that is hot rodding.

The stock fan is the 7 blade unit that came on my ‘67 273 when I purchased it. The Derale is within an 1/8” of the stock fan (best I can tell). The blade pitch is deeper. Here are the pictures and some ruff measurements.

I’m looking forward to getting it installed, freeing up some horsepower and hopefully it will eliminate by v-belt squeaking.
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