4 speed in A-body

Hey Guy's (experts), I bought a 1970 A833 4 spd that has a Hurst "slip in" shift stick (no bolts)... how do I get that shift stick out of the shifter assem? I can't find much on the net about the removal other than I hear it has clips on the sides and I have to slide feeler gauges down each side and use a punch from the bottom to get it out?

Have also heard there is a rubber grommet with tabs in there and it needs to be forced out from the bottom with a punch.

Appreciate any instruction on this stick removal...

Thanks, D.