Yes, Betty Ford spoke in favor of the Equal Rights amendment, and also in favor of legalized abortion.
Perhaps there is no bolder sign of how far to the right the Republican Party has dragged itself than to look at the life of Betty Ford, once right in the center of the GOP in ideology. Is there another Republican woman nowadays who will speak for the equal rights of women? I can think of none. Is there any Republican at all who will speak for safe and legal abortion services? No. There may be some Republicans, like Barbara Bush, who believe in choice, but she was shut up long, long ago.
RIP Betty Ford. It is hard to even imagine you as a Republican. Hell, Michelle Obama is not as liberal as Betty Ford, at least outspokenly.