Well, I found the cheapest one for 60 bucks at autozone, but am afraid to install it myself because I don't know what all is require on a 93' F-150. By looking at it, it looks fairly simple, can someone give me advice?

 

Try www.windowmotorstexas.com. They sell re-conditioned wiper motors and a bunch of other motor drives.

 

As far as replacing the motor, it's not that hard and doesn't require any special tools but does take some time. You'll need to remove the portion of the cowl directly in front of the windshield (the one with all the little holes punched in it). You may have to remove the chrome trim at the base of the windshield too. The reason I say "might" is that there are two little screws hidden at the ends of that cowl section under the chrome trim. You might be able to flex the chrome trim slightly and get to these tho. Other than that there are 5 screws going down thru the top of the cowl piece and maybe 6 or 7 along the front lip. You also need to pop the chrome trim piece off the top of the antenna and underneath are 4 screws. Remove these and then you can disconnect the antenna cable from the antenna. After lifting the cowl piece off you'll have to remove the clip holding the wiper control arms onto the wiper motor. There's a little lip on the clip keeping it from sliding off. Flex this lip away and slide the clip off. Now you can remove the electrical connectors and the 3 bolts holding the wiper motor in. Reinstall in reverse. I'd suggest putting the wiper motor in and hooking up the juice and then cycle the motor to make sure the motor ends up in the "parked" position. Then install the wiper control arms.

Randy