oh. haha i wouldnt bother ringin ford for info. coz they wont get money outtta it so they dont care.
i rang my local ford dealer inquiring which parts on the gearboxs in the ba falcons are differnet. got told they are the same except the extension housing is different. how f**k wrong they were!!.
anyway. ask papa smurf on here he is incredibly good with his advice and helpful.

You can get workshop manuals on eBay on disk.
Price anywhere from $10 to $20.

On the earlier X Series falcons there was
A drain bolt on the torque convertor so you could
Do a full drain and refill.

It's not a good idea to partially change the fluid
As the old fluid will contaminate the new
Fluid.
So you want to get as much of the old fluid
Out you can.

The rear spark plug is easiest removed using
A kingchrome T bar plug spanner.
They have a pivot joint and as well are torque
Set so you can't over tighten the plugs.
Cost around $70 but well worth it.

Great to hear a Female being very responsible
With her car as well giving it a go herself.
Keep it up.