I have read a few threads stating that an upgrade would be to use splined axles. I did a search but can't seem to find any threads with anyone upgrading to them on a machine as old as mine. I'm not looking for a step by step guide, but just a thread with info that will point me in the right direction. Do any 6x6 gurus have any suggested threads I can read through pertaining to this? I've seen whippers how-to for the attex. How similar would it be on an argo? They are both 1" axles from the factory.