[trularin]

Unbolt the axels and pull them out enough to allow the rear to be unbolted.
Remove the nuts that hold the pig in place.
crack the seal and pull the pig.
On the bench, scrap the gasket that goes between the pig and housing.
Unbolt the retainer and remove from the pig.
Secure a new seal, crush sleeve ( if you have one ) and retained gasket.
Replace seal. Use caution as you may mess this up if you are "happy" with a hammer.
Reassemble the pinion to the retained and torque to spec.
RTV on ONE side of the retainer gasket and allow to dry.
Grease the other side of the retainer gasket and reassemble.
Check vent tube and verify it vents.
RTV pig gasket to pig, allow to dry.
grease other side of pig gasket and reassemble pig to housing.
Pul it all back together, fill with the lube of your choice. MAKE SURE you add posi fluid.

Hope this helps.