How would in-class economic inequality be handled in a worker’s state?

Originally posted on r/GenZhou by u/Bacon_Is_Greasy (score +5)
At least in classical Marxist texts there is a focus between class divisions and the inequalities that come with those those divisions. I have been thinking about the economic differences within the working class and if those differences would cause any divisions after the revolution and into socialism. I know communism isn’t egalitarian in that we all get the same pay and things like that, I was just wondering if those differences would have us regress back into class society.