i just did this a couple days ago.
first take out the old fan and shroud (4 bolts on fan and i think 2 bolts on top of shroud and 2 on bottom) and slip them out together
cut off all the old clips and mounting brackets off of taurus fan
this next part might sound confusing but once you see it it isnt, on the motot side of the radiator at the bottom theres 2 metal clips sticking up ( i put the fan in as far down as it would go resting on top of clips and marked it, then pull it back out and cut 2 slots in it)
then when the clips slide into slots i put a washer onto the head of a ziptie and poked it through the radiator and used another ziptie head/washer to hold it down
for wiring i mounted the relay to the left of the batery on the fender well wired it to the fan and spliced a switch to the blue wire with a grey tracer under the steering column so it'll only come on it the key is on the run position and i can turn it off with the switch
i know i made that sound confusing but it isnt, and if you need to know anything just ask
4.0 I6, 30" by 9.5" dueller at's, crager soft 8's, 2" BB, home made quick discos, K&N cold air intake, ford taurus e-fan
"I say if your kid knows peanuts will kill him and he insists on stealing someone's p-butter sandwich, that's just darwin in action."