I did a forum search here and on Thor Forums - Powered by vBulletin
and found over 24 reports with identical problem description - passenger side wiper arm rotating to far and in the worst case wedging under drivers side freezing it. End result - both wipers out of commission resulting in a dangerous life safety situation. Several owners reported same failure on replacement wiper assembly and I found one owner reporting failure of original and two replacements. So it looks like Thor is continuing to use bad stock and not really fixing the problem.
So far there are several Thor products with the same problem: Challenger, Outlaw, Hurricane, Windsport and Miramar spanning product years 2013 to 2016.
Please call or write Larry Long - your life may depend on it.
Suzie & Chuck USNR USAF USCGA Challenger Owners Club 2015 37KT Challenger, Demco Commander tow bar, Ready Brake, Sewer Solutions, Safe-T-Plus 41-230, 5-Star tune, towing 2017 Ford Edge FWD 3.6L V-6 four down & 385 FastTrack kayak in the basement.
Summer - Creede, CO Winter - Okeechobee, FL