Hy guys need to replace an inner cv gaiter that looks cheap 20 quid ish and i can do it myselfe but have some concerns. Will the gearbox drop all its oil if i remove the driveshaft? Is there any special tools needed to do it? I will replace both swingarms too as the rear bushes on both swingarms are a goner.

Yes your oil will drop out and there are no special tools needed,just a long pry bar to pop the drive shaft out