Steering shaft issue

[Ryo]

Hello,
Can someone help me to solve issue how put together the shaft that goes into the tube as there are 2 like plastic rings (marked red on picture) and the first was broken so i used 2 component epoxy but it breaked anyway now i am lost. Is there some way to use for those plastic rings something like construction glue as they seems to be some way of plastic that was liquid state before and they just put it together in factory this way.
I dismantled it because i needed to replace the upper bearing and stopper bearing and i just have not find way to replace them other way. Factory manual was not helpful at all and on toyodiy there is no information that this two parts can be dismantled. Thank you for any hints.