Get the nut loose and backed off enough to protect the shaft threads, then a quick, solid rap with a drilling hammer will knock that puppy loose from the taper.

No idea where you can find the specific tool though.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.