What is the name of that cartoon I am thinking from early 90s maybe late 80s with Gleeb and Glob a caveman?

You're likely thinking of the cartoon "The Flintstones".

While "Gleeb and Glob" aren't characters from that show, they are similar to the caveman characters "Fred Flintstone" and "Barney Rubble".

It's common to misremember character names, especially from childhood memories.