Oops, correction, it was 104 days.

In the same year, they struck Int'l Harvester for 72 days to win a pension plan.

It wasn't until 1970, in a 10 week strike vs. GM, that "30 and out" was won at GM; in l973 it was won at Chrysler after a token strike of 9 days. I don't have Ford information; but anyway, "Too Old To Work" was supposed to have been written after he had an experience on a picket line where someone had put something like that saying on a picket sign. For the '50s strikes, not the '70s.