Windstar Electic fans, do they have to be wired for variable speeds

[jadedbird]

So its a 6.0 inor block and a 6l80e transmission.

I wanted to go with a 99-03 cherokee fan (2661-0016) with a sbc fan shroud but it looks like too tight of a fit.

So I'm looking at 95-03 windstar fans (FO3115111).

Can they be wired to run one speed? Or does it have to be programmes to run variable speeds?

I would just like to stagger their activation temps and have the small fan run for 10 minute delay after shutting down the truck.

I was planning on using a universal summit fan electric fan thermostat kit, but it looks like you have have your on programmed to run them