I figured there to be alot more old 4020's around than that. Seems like everyone and their brother has one.I can only come up with 5 large tractor producers AGCO, Claas, CNH, Deere, and Kubota. Just for fun the top 5 most produced NA tractor models:
Ford 8n ~524,000
Farmall H 391,227
Deere B 357,456
Deere 4020 184,879
Farmall M 270,140
I figured there to be alot more old 4020's around than that. Seems like everyone and their brother has one.
Probably because they are so darn good from the get-go, if one ever breaks, the owner is motivated to fix it.
We talk about simple, reliable, efficient, these were it with the features you really needed, power steering and powershift without a bunch of junk to break.