Thanks for sharing this link!!Here are good videos from Detroit
https://www.bing.com/videos/search?q=scottie+dtv+1963+wagon&&view=detail&mid=11CA474E54CDB626DFE011CA474E54CDB626DFE0&&FORM=VRDGAR&ru=/videos/search?q=scottie%20dtv%201963%20wagon&qs=n&form=QBVR&sp=-1&pq=scottie%20dtv%201963%20wagon&sc=0-22&sk=&cvid=53BBB2BBDF214F928D74F50CA285651F
ttps://www.youtube.com/watch?v=8wv3BylQa1I&feature=youtu.be
They are transmission cooling fans.Wonder what that blower wheel looking thing is on the underside. Looks like maybe a fart remover
Here are some more good videos from Detroit Autorama 2020:
> https://www.bing.com/videos/search?q=2020+ridler+1963+chevy+wagon&&view=detail&mid=BF42492792CE7470F9E7BF42492792CE7470F9E7&&FORM=VRDGAR&ru=/videos/search?q=2020+ridler+1963+chevy+wagon&qpvt=2020+ridler+1963+chevy+wagon&FORM=VDRE