Need information on a 1967 Dart GT

As the title says, I need information on a 1967 Dart GT. If it had a 273 with either a two barrell or a four barrell, did it get the 904 trans? And what rear, the 7.25?

Were the steel rims painted the body color that year?

And this question may sound dumb, but what is the real difference between a 67 and 68 dart, besides the signal markers on the front fenders?