pugslyyy
Expedition Vehicle Engineer Guy
Firstly I would guess a few places, I got mine from SSA in Brisbane. http://ssa.com.au when I got the front springs replaced. Another place we tried, but didn't do them was Carroll springs. Could also try DKSP http://www.donkyattqld.com.au/mitsubishi-fuso-canter/fg649-6-0t-10-2002-11-2007/suspension
Brett's mentioned earlier in this thread maybe of assistance as well.
Where does the grease come out of the greasable pins? I'm assuming in the middle, but is it just a hole bored through or something more than that?