initially reading up on this, i was under impression that swapping gears inside the differential requires specific tools and precise measurements and not a job for a novice diyer. i recall reading that it is much easier to just replace the axle.
reading back at this thread:
4.10's will help get your power back but I wouldn't spend an extra nickel to get 31 spline axles for a 2.5 truck. Traction Lok will help in snow or poor traction but when it breaks loose it will want to slide sideways.
www.therangerstation.com
it seems replacing the pinion seal is what is difficult, something about setting up proper 'backlash' and 'tooth engagement'
can i replace spider gears without disrupting pinion bearings?
~edit~ OKAY, JUST WATCHED MORE VIDEOS:
looks like i should be able to *somewhat easily* remove my carrier housing and replace those gears inside, ya?