Kyle,
This tutorial is a start for understanding the 80 series suspension.
Read these birfield repack instructions and follow the links for everything you could possible want to know about a birfield. Basically, they are CV joints. Here is a list of all the parts and a diagram illustrating the...
Re:Normal Birfield / Trunion Seapage?
Here is my interpretation of what the pic shows and other things we know:
Background: The patient is a 97 with 95k miles. Prior axle service unknown; assumed never serviced. Also assumed is regular diff fluid changes and that prior services have *not* been...
Re:Normal Birfield / Trunion Seapage?
Normal, assuming the birfields have never been repacked.
Clean 'em up real good with a "commercial" grade degreaser solution before you dive in and do the front axle service. That will make things a lot cleaner and easier.
-B-