specialist tool ?

17mm singlehex drive? (big allen key)
Use the one from the diff oil drains/fillers.
Good guide, except you can run the hub bolt into the cv joint to pull the cv off the shaft.
 
well it arrived today so will get it fitted in the next few days . thanks for all the help
 
well that was painless ! the bolt didnt pop the cv off for me though .

a few short sharp belts with a mash hammer did , cheers guys !