That works a lot better than it sounds. And it can be reinstalled the same way you get it off - no black pipe necessary. You just need to get the bearings started square on the shafts. Works on both the tailstock and the input shaft.

I bought the "special pliers" 40 some years ago at Sears. I bet you could find them on Ebay cheap.

I made a tool to pop out the reverse shaft. A solid piece of barstock with a 90 degree bend. Long enough that the bend comes out at the end of the case opening. Used like a lever, the case edge acts as the fulcrum - you tap the end with a mallet and it drives out the shaft (which isn't terribly tight so there is no damage to the case).

Any tranny shop will press the tailstock bushing in and install the seal with the proper tools for a couple of bucks.