Axle rebuild?
 

I'm taking my rear axle out for some repairs, and I'm wondering if there's anything else worth doing while it's out of the vehicle? I'm already doing a brake overhaul, a wheel hub, and the propshaft coupler yoke. Anything else useful to do at the same time?

Differential gasket is the thing that comes to mind, but I haven't actually had any issues with diff leaks on this truck (yet). Thought I'd seek some advice from the forum here.