Check those sway bar!
This happened to us too! Thank goodness for this blog. Just bought our 2015 Thor Ace 29.2 at CW in July. We made one trip and thought wow....the handling needs improvement big time. The rig already had the Roadmaster Steering Stabilizer. I checked out this forum and saw many mentions of the F53 sway bar hardware problems. My husband checked and sure enough......one bracket on the rear sway bar was completely missing and the bolts on the other side were loose. Between fixing that issue and the CHF, the rv handles noticeably better.
PLEASE add inspect bolts on sway bar part of your routine maintenance checklist!
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