Looking at a 94 Nissan pickup with manual transmission.

Anyone have any experience?

Would be a beat-around truck for chores and maybe hunting.

Sounds like 4wd isn't working. Anyone know how complicated the Nissan 4wd system is?

They are fairly easy to work on. One of my friends had one and it seemed we were always working on it. It was gutless and be warned, it's no Toyota. The front end is noticeably lighter and not as well built as a Toyota 4x4.