Bob's right, they look pretty chewed up. The factory sent us replacements (although I was trying to find a different part, but I kept them anyway, they are in our spare parts stash) so I know they have them. They're not very expensive and they were pre-cut. It's important to have those bolts sliding freely back and forth, if they're too tight or not just right the arms have a tendency to pop out of the tracks, and they you have to unscrew the plastic track pieces enough to get the arms back in them properly. It can take a bit of extra time when you're packing up to leave (and it's embarassing when people are watching you, TM's can draw an audience sometimes). I kind of greased ours up with vaseline (for lack of anything else available at the time) and they've worked fine ever since (7+ years on our 1997 TM).
The way ours are in the back bed are (starting from the bottom):
Nut
2 metal washers
Support arm
big fat plastic washer
bigger around plastic washer
Guide channels (the things they slide on and are screwed to the underneath of the beds)
smaller plastic washer
bolt head
From the pictures of your replacements apparently I have the 2 metal washers at the bottom and one of them is supposed to be higher up. But ours works fine. They are not very tightly compressed, there's a bit of wiggle room.
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'97 2720 & '01 Chevy Silverado 1500 4x4
2011 & 2017 Prii, 10'x18' & 10'x9' Tents
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