Before I tear into it to investigate I thought I’d ask to see if someone has already done so. I want to know what support/roller/slide system I have in this new to me 2016 Thor ACE 29.4. Not the motion drive - I know that that is the infamous Schwintek - what I’m asking about is the system that supports the weight of the slide box and whether it is large rollers or something like a teflon lined channel. Looking to decide on maintenance for whichever one I have. Thanks y’all