I own three Oliver tractors a standard 80 a gasoline 77 and a diesel 88.
The 80 has pressed steel wheels painted red ( all my documentation shows spoked wheels) My 77 and 88 have cast steel wheels and are painted  yellow (the even have Oliver 77 or 88 respectively cast into the dish centre) My documentation says Oliver has red wheels and don't mention cast wheels at all. Is this an Australian thing yellow wheels instead of red?? A friend told me red indicated gas and yellow was for diesel.
I would like to see pics of a battery box for the 80 sizes and shape so I can make one up finding hens teeth is easier than finding Oliver parts in Oz.
Thanking you.