You have pinion bearings, and carrier bearings. Two different things. It takes a fair amount of experience to set up differential gears properly.
Some shops that would charge for the service, don't have competent Tech's that can set-up gears properly.
I would suggest that learning gear set-up on a differential that is in your daily driver, might lead to frustration.
As has been mentioned, replacing the entire 3rd member with one already set up properly, would be much easier for the inexperienced.