"John Clear" wrote

It was a Helio Courier. It was a great example of boys and their
toys. It also had off-road truck tires and other examples of "Don't
even bother asking 'why?'".

http://www.etigerrr.com/Skypark/jay_jensen.htm
http://www.airport-data.com/aircraft/photo/047270.html

Yep, that was it! Vuuury, vuuuury strange. I liked it though!
--
Jim in NC