Kelly Wright's Shock Teardown

Knock out roll pin though top mount
Compress spring far enough to get at nut at bottom of top mount
Place assembly in padded vice, clamping top mount so it can't turn
Remove NUT snugged up to top mount lower side
Assembly will then come apart



Porschedave's Setup

I just bent a piece of steel and put a bolt through it.  There is not much pressure.  A thin wrench and your in business.  Nothing fancy but it does the job.