The housing of the front diff is Dana 44. If you are looking for gears and such then yes, you will be looking for D44 gears but all the outer hardware is still Dana 30. If you are thinking about changing gears keep in mind that there aren't many companies who make the gears for the Rubicon front D44 yet. I believe it is a reverse cut D44 gear set. If I'm wrong hopefully someone will correct me.