RodInNS, I agree with the 6000 being a mess. Dad had an early 60's red 6000. Because of the SOS, in the shop all the time, Ford gave us a newer blue 6000. We had to use are old tires.
For that reason, I'm afraid to buy one. The mechanics had a hard time with them back in the day. What about today, how many people are left to fix them?