Fan Clutch shaft length?

I bought a 5 blade clutch fan years ago for my 69 Road Runner and the shop that is installing it showed me that it won't fit. They have an old 7 blade clutch fan with a shorter shaft on the clutch and it fits fine. I need to find and purchase a new one if I can, does anyone know where I can get one? The part number that is on the clutch of the 7 blade clutch fan with the shorter shaft is 2658456. (FYI - The part number on the 5 blade clutch fan with the longer shaft is 4095704.)

Thanks, Paul

1989 jag xj6 napa # tem 261306

Get the Hayden 1705... closest you will find to the 070 dimensions. It's only about 20 bucks.

Thank you both very much!

..fan clutches operate at 70% of the water pump speed,are heavy
and some engines will heat up at idle
.. flex fans are light and keep the engine cool when idling,but some don't like them.