[my427cobra]

Thanks Larry. So I'm going to try to guess again.

For a Goodyear Blue Streak tire 5.50/9.75-15 from the mid 1960's:

5.50 is the tread width
9.75 is the section width
Should fit the 1965 magnesium Halibrand Cobra II (7.5" front) wheel.

Am I right?

Cheers
Greg