As a kid growing up on a Indiana farm johnny poppers were everywhere. By the mid 60's it was mostly J I Case, or International Harvesters do to Deers lack of support & sales tactics. By the mid 70s most all J/D's around were gathering dust, or no sales at auctions. The ones local to me now, all I hear are support issues as well as their heat rates, really suck. Course their heat rates back in the 60's sucked just as bad compared to Case, and I/H.