I'm almost certain the 2016 model does not have any visible track on the single small (72") dining slide out.
In fact, I distinctly remember seeing 4 cables and thinking they weren't very robust. I also can't see in my mind how it works.
So I googled a bit and found 2 different hardware configs on pictures of 213's
Here are examples: (cables are hard to see clearly)
I'm 99% sure the 2016 is like the second pic.
Having said that, I'm sort of relieved it doesn't resemble the infamous Schwintech thread(s).
But it would be cool if someone knew a little bit about this alternative system and if they could point me at some source of info\documentation about what it is and how you maintain it properly.
Thanks in advance if you do.
I guess it's good news that I can't easily find any complaints on the 213 slideout.