What you need:
- 3, 1 quart (946ml) bottles of 75W-90 gear oil
- 3 feet of 1/2 inch clear plastic tubing
- Ratchet (not a wrench) with a 23mm socket (24mm will also work but it'll be a bit loose)
- A bucket for collecting the old oil
- 2 jack stands and a jack (hydraulic or the emergency one)
- A sidewalk
- Run the car for about 10 minutes to get the transmission oil warmed up (it's more fluid when it's warm)
- Park one side of the car on a sidewalk
- Use a jack to raise the car so that it's level then lower it onto the jackstands
- Get under the car and spray the drain and fill plugs with WD-40 or PB blaster
- Loosen the fill bolt (if you can't, STOP HERE)
- Place a bucket under the drain bolt
- Remove the drain bolt and let the oil empty into the bucket
- Once the transmission is empty, screw the drain bolt back in and tighten it
- Remove the fill bolt and run the tube from the top of the engine down into the fill hole of the transmission
- Open one of the gear oil bottles and attach the tube to the end of the bottle
- Stab a hole into the bottom of the oil bottle and let the oil flow!
- Do this for the second and third bottle
- On the third bottle you'll need someone under the car to let you know when the transmission is full (it'll start leaking out the fill hole)
- Screw the fill bolt back in and tighten
- Lower the car and enjoy!
See pages 05–15A–1 and 05–15A–2 of the service manual for help locating the drain and fill bolts. They are attached for your convenience as well as a picture from the underside of my car.
Thanks to all the guys who helped me in my original thread.