Sounds like the electric is for the A/C and the clutched fan off of the water pump is for the cooling system.
If you really want to get better mileage, ditch the entire a/c system. Yeah, sure, it can get a little warm, but you would see a 35 or so pound loss and a reduction of drag on the engine, as well as better gas mileage resulting from both of the above.
Or be sissy-footed on the gas pedal. That truly is the only way to increase the gas mileage... most of the problem is the driver. Given what you said you've been getting, either your engine needs a tune up or you are a lead footed gorilla trying to rip the steering wheel clean off of the column...
I get 20-24 mixed avg. in mine. And it has the 3.0 super outdated engine.
1996 Ranger 3.0, 5 speed stick, 4x4, 3.73's, 31" BFG AT KO's
Wiring, it's all fun and games until you poke yer eye out with a soldering iron...