Yep -
It's pretty simple - here's a step-by-step:
Remove rear driveshaft (unbolt from yoke and pull out of tailcone)
Using a screwdriver, pry the old seal out of the tailcone.
Inspect tailcone seal mating surface for defects and clean.
Apply thin layer of RTV black around outside of seal shell.
Place seal in tailcone bore, and gently tap in place. The best way to do this is with a light hammer and a brass drift - but a light hammer alone (with a soft face) will do nicely. Gently drive the seal until the flange (as I recall, there is a flange) butts against the tailcone surface.
Before reinstalling the driveshaft, inspect the slip yoke surface. It would be wise to give the surface a pass with crocus or emery cloth to remove any surface rust. Use at least a 180 grit - if not finer - which will give you a surface that is just rough enough to make the seal seat against the slip yoke.
Reinspect in about a week - the seal should be seated and not leaking anymore.
NOTE - Be careful to not remove too much material when working to remove the rust. If the rust is too bad, it may be necessary to install a "Sleeve & Seal" kit, which will give a new bearing surface for the seal. Don't do this straight away - there's nothing wrong with doing it, but it's enough of a PITA to not want to do if you don't need to...
5-90