L-body Manual Steering Rack Help

[contraption22]

Hi all.

I have an issue with the manual steering rack in my Horizon. From memory, it is from an 88. It was making this clunk that I could hear and feel in the wheel, and when I pulled the passenger side boot to inspect, I found this plastic piece on the rack hanging outside the tube.



It appears that there should be something that retains this piece inside the tube, but there isn't anything. Is there a clip or something I am missing?

Thanks,

Mike