Believe it or not, I put one on my 95 last weekend.
First, buy a quality pump. I picked mine up from NAPA. It was their 'best' pump. It's junk. I wish I had bought a Ford (Motorcraft) pump. This thing is noisy. No, it's not air. It's just the common Ford noisy pump. But the good ones are quiter.
Next, remove the lines. Use a flare nut wrench on the pressure line if necessary. But even if you screw up the fitting, all is not lost. Just cut the line and use a socket and replace the hose. Good time to replace a seeping pressure hose anyway. The return line us just a slip fit with a clamp. Put a pan under the car...you'll lose all the fluid out of the reservoir.
Unbolt the a/c compressor and using a bungee, rope, etc tie it off to the side and out of the way. You do not have to release an a/c line. Then unbolt and remove the entire bracket assy the pump is mounted to and take it to your bench. It's a simple matter of just a few bolts and nuts...and there is a small metal bracket you remove that goes over to the water pump. It is very simple to remove.
Here is where you may run into trouble. The pulley must come off to remove the pump...and I'm here to tell you...the pulley on my pump was one tight SOB. As tight as I've ever seen. KD makes a good pulley puller. You may be able to rent one. Make sure you understand how the puller works before you start so you don't ruin the shaft in either pump. Remove the pulley, unbolt the old pump. Bolt on the new pump, and install the pulley utilizing the pulley tool again. I wouldn't use that cheesy bolt and nut thing they supply with the pump for nothing.
Install the bracket/pump, install the pressure hose and new seal, but leave the return line loose. Make sure you still have the cap on the fitting for the return line so oil won't run out of the reservoir. Bolt the a/c back up, install the belt, fill with oil. Take your return line that goes to the reservoir and hold it over a bucket. With a helper, start the car, (you may be able to accomplish this by unhooking the primary lead to the coil and cranking the engine over) and pour oil into the pump while the old runs out the return into your bucket. Do this until the oil coming out of the return line is clean. If you really want to treat your new pump right, install a filter in the return line and fasten it to the pump. Bleed the system by raising the wheels in the air and turning from lock to lock several times. Lower the car, check the oil level, and go test drive it. Don't be surprised if it takes a day or two to get all the air out.
