Sounds like you have it figured ---for this round! But then I might throw some info your way for the future cases that are sure to come along.
You asked about manuals and there is a ton of info n the part which Winnebago considers their portion but far less on the chassis or what the truck portion has.
But how to find the info?
If you feel it is a group that would not be found on the normal truck, it may be in the RV part so start here, perhaps?
https://www.winnebago.com/owners/own...s-and-diagrams
By working your way down through the various sections and sometimes guessing which way to go, you can often get down to drawings of your exact RV and see how things might be put together!
The group built after 2010 has some really great info but on your age group, just drawings that show the parts can be a big help at times.
__________________
Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!