Removing the lower ball joint

[Richie-Van-GTi 71 2 Cars]

Has anyone successfully removed the lower ball joint from their wishbone without knackering the arm? I have some brand new delphi arms, the correct shape ones and I would like to get the ball joints out if possible.

Looking into making an insert to accept downward facing ball joints (406 style)

 

[SRDT 172]

Machine/grind/chisel the rolled lip at the bottom:

[stef205 92 1 Cars]

Years ago we pressed one out, then milled the casting to take a 106 ball joint. Alot of effort and time for what it was worth. 

[welshpug 1,650]

I have seen them modified to accept a spherical bearing,  aftermarket castings are better for this as they have more meat.