Another steering column question

I'm working on my 71 Demon 340 console shift auto car's steering column. Getting it cleaned up for paint and whatnot before reinstalling it in the car. I've read most all of the threads on here and watched lots of videos but I still have a question.
When I pulled the column out, I found no lower column bearing. OK, no big deal...either get a ball bearing as described numerous times or get the Mopar plastic bearing. I'll install it after cleanup/paint of the lower column area.. But I believe you are supposed to pull the shaft out of the top of the column to install it.

I'll pull the lower shaft cross pin but would then foresee simply lightly tapping the bearing into place from the bottom. Anything wrong with this? I know you have to hold the shaft or you will break the little plastic pins that allow the column to collapse but other than that, I'm wondering why this may not be feasible? And after getting the bearing into position,, what then holds the bearing in that position?

I do not plan to disassemble the column completely but just want to add the lower bearing and get the lower column all cleaned/painted up nicely. Thx for the help!!

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