Removal of AU Falcon Diff

[Greg G]

I own a AU Series 2 Falcon Forte Sedan, I am intending to remove and replace the pinion bearing. Can anyone tell me whether or not I will need a Differential Housing Expansion Tool in order to remove the diff assembly from the housing.I have had some conflicting information on whether this is a necessary tool or not.If the tool isn't a absolute necessity can someone tell me of a alternate method of removal.Is there a web site with information on its removal.I have the assistance of a relative who is a qualified and experienced mechanic.He has not actually performed this procedure but is more than confident on doing so. Any help would be greately appreciated.