I'm glad to see several people have some heavy Chevy's from the 60's. I wish there was more discussion about the 80 series with the old 409. I know most of these were worn out years ago and have been scraped out, but its nice to hear about them every now and then. Hope to one day restore my 1962 80 series single axle tractor that my father bought new in early '62. We also have a 1963 tandem axle Chev. 80 series tractor.