Do I need a high school transcript to apply to a university if I have?
No. The GED counts as a diploma. Now, some universities might require if they are very selective as they use GPA as part of the admissions decision. Why you have a GED is a factor in this. For example, most universities are used to home school students who do not have high school transcripts. Every university is different, so you need to verify with ones you are interested in applying to.