Yes, SumoSprings and Roadmaster rear sway bars can easily be used at the same time on an RV like your 2017 Winnebago Sunova 22,000 lb chassis and you'd have a great ride quality. The Roadmaster Sway Bar part # RM-1139-149 is a confirmed fit for your RV and then for SumoSprings you'd want the # SSR-187-54-1 which is also a confirmed fit. view full answer...
Yes you could use an air bag kit for your 2017 Winnebago Sunova 36Z like the Air Lift # AL88240 to help level out your RV from side to side. You'd have to put a little more air pressure in the side that seems to be sagging and the trailer will sit level. view full answer...
I spoke with the manufacturer and they stated the rails on the LaSalle Bristol CrossBreeze Adjustable Toy Hauler Screen - 92" Wide Item # 3441409200PBK would take up the extra 1.5" of space so you should be good with the 92" screen. view full answer...