Diff set up

That's a very basic overview, but basically, seeing as your not touching the pinion, you merely measure existing backlash, so long as it not "to far" from spec, simply refit to your locker/carrier/LSD and reinstall to met original, don;t concern yourself with comparative blueing, as if backlash is the same it will be fine

Don;t get excitited with the backlash and the spec, if it drove fine before, refit the same, otherwise "correcting" the backlash you may well end up with an unpleasant whine aside from the wife

The difficult part to show over an internet forum, is the preload on the cariier bearings, as its done by feel and nothing more

Pinion height is where it gets difficult and wont concern you

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