Clutch fan options on my 340?

Thank you rusty, thats what i wasnt understanding, now that i have a picture to look at i completely understand now, why is there so many combos available? It seems like a lot of confusion especially for someone whos not expirienced in clutch fans as much as yall
Yes and you’re welcome to.
I'm leaving this post. Good luck on your quest!
Make sure you stop by an online source can purchase the engines book where you can find out the information you keep asking for that’s only been up for like the 50 years Rusty said.
Or is a book to Barbaric for you?