Welcome to the forum!
I can’t help you unfortunately but there are some folks here in this forum and in the Montana Owners forum that can help. Until someone chimes in - google “Schwintek slide systems” and click on “videos”, and you will find videos showing the system basics and how some have fixed various issues. I like the ones from “My RV Works Inc.”
Just curious - your photo #2 looks like some damage may have been fixed in the past. Are you the original owner?
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'19 Chevy 3500 High Country DRW
'18 Montana 3921FB Aggie ‘77
('17 Laredo 330RL previous RV)
In the sticks near Austin TX
Aussie Gus+Texas Heeler Jimmy
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