New Member - K20 TCase Question

[654x4]

I picked up a '65 K20 last weekend. It's a low mileage truck just out of service at a fire department. It's very much untouched, drives well and has only 8000 miles. I've really enjoyed it so far... I've wanted one of these for a long time!

Anyway, I have a question regarding repairing a transfer case leak. This truck has a Rockwell T221 divorced transfer case. It is leaking a bit past all 3 shaft seals causing a few small drips on the ground after each drive.

I'd like to fix this myself. Can I do this in the truck? Can anyone provide basic instructions on how to swap the input and output shaft seals?

Thanks in advance!
Matt