Yep, tools as Winnie said:
I just re did mine. This is for a GQ
You'll need an allen key for the 6 allen head bolts.
Get yourself a set of multi circlip pliers to remove the circlip off the end of the axle.
To remove the inner cover, just grab it with a rag. It slides off pretty easy.
54mm socket to remove the nuts.
A spare lock washer wouldn't go astray, or at least a hammer to hammer it flat to reuse it. But always good to have a spare in case it's been used a few too many times.
Torque Wrench that goes up to at least 170Nm
Flat blade screwdriver to bend the lock washer. I actually use a bicycle tyre iron. Less chance of doing any damage when bending the washer.