I don't know when they actually went out/stopped production,but around 1979 I bought the last pair available to the Sears warehouse in New England.I wanted four but they could only come up with two.(Sears used Garfield for the A tires)I have some 45 year old Garfields that are doing fine.They may ride a little hard,and the only way to tell if they're flat when sitting is to actually use a guage.I've had piles more trouble with new Firestones than I have ever had with my old Garfields and Riversides.