Chevy & GMC Vans

which is the easiest 2 speed transfer case to swap into 2002 awd astro van

Hey Pete. Welcome to our forum.

The answer to your question, which can be found in the transfer cases section, or by using the search, is the np231/233.

Also, it would be nice if posted your questions in the right section rather than putting them all in "general discussion".

Cheers and good luck with your van.

I moved your thread to this proper place.

To answer the question, swap in a NP231 transfer case from as late an S-10 as you can find. It is by far the easiest as all you have to do then is hook up a shift linkage.

Where are you located and what type of driving conditions are needing the low range/4x4 for?