67 to 69 firebirds never came with 15's anyways so whats the big deal?
most of these cars have changed over to 15s ,seems like....
I know that 70`s ,80`s Volvos all came with 14`s, but skinnier tires.. so they may still find tires for those...
last time I replaced my 245-60-14s on the Firebird I had to got to 235`s , no 245s anymore....I m thinking I may go to 15s eventually ,to get a better choice...