Dead easy.
Required:
Jack & Axel Stands
17mm hex/sump key
Ratchet/power bar
Flexible funnel
2 bottles of Redline MTL
Drive around for a few miles to warm gearbox oil, it helps it to run out!
Jack car up (passenger side) as high as safely possible.
Remove wheel.
Check you can undo the fill plug, before you drain it!

On Bottom of gearbox, remove the drain plug, empty oil into suitable container.
Remove side fill plug, helps oil run out as well.
Re-fit drain plug.
fill slowly using funnel, fill with 2 quartz (2 bottles of Redline MTL)
Tighten fill bolt.
Refit wheel, tighten up wheel bolts!
take it for a spin and enjoy your silky gearbox!
