when i put on my electric fan the stock fan had cracks at the base of all fan blades,and would have blown up soon for sure. so i wouldnt bother with the factory fan even if you get one for free. just gonna give you problems later. plus so many advantages to the elect. fan.
that spal controller looks cool, i may look into that. i got a temp switch from summit,hooked it to my own relay.now i need a manual on for sitting idle with air on,and manual off for deep water. at first a switch and relay was all i had,almost melted engine a few times. once i had engine temp gauge pegged..yes pegged..all the way.