window question

[joe in calif]

In the bedroom of my 29 RLDS I have 2 window that go up and down. You push a lever on each side to operate them. There is a plastic cover over the spring and it is coming up on both ends. I cut off one end as the picture shows. My question is are these plastic piecse that cover the spring replaceable and if so what is involved in replacing them? Do they just push into place?
This is what it looks like on the outside

This is the piece I need to replace on the inside

[joe in calif]

70 views and no has an answer, I guess I'm the first with this problem

[abarkl]

But probably not the last. The only thing I can think of is Jayco RV parts catalog & sales or the window manufacturer's website.