hi mate
had the same problem when i did the front wheel bearing on my td5 ,I had to cut the flange off,start just above the splines of the c.v joint(half-shaft) and cut across the flange NOT DOWN the flange,so you are cutting into the hub just be careful at the edges near the hub!,If you prefer you can cut the flange off all around the centre boss (splined bit) to give you more room then work on the centre boss just grind it down as close to the splines as possible then support the under side of the centre boss with axle stand,blocks of wood etc and split the boss from above with a cold chisel, hopefully you should be able to clean up the splines on the c.v joint,if not new joint required but once the hub is off not hard to get to and not very expensive! the hub nut should be a 52mm and if same as td5 there's just one nut with integral lock tab
hope this helps its a bit difficult to write it down clearly with out going on and on
any more info give me a call 07980539915
