I've searched the site (sometimes you miss stuff though, wading through dozens of hits) and read the service manual and it seems that these two terms are often interchanged. At least one other poster has asked this same question but didn't receive a response, the thread ended there (maybe it's a stupid question - if so sorry).

Are they the same thing? Is the transfer case part of the TOD system?

For example: in the service manual it states that the transfer case holds 2 quarts (doesn't specify of what here)

... and elsewhere it says that the TOD system uses Dextron III.

I'm assuming , based on other posts on this site (and logical deduction), that the transfer case holds two quarts of Dextron III (or equivalent).

Is this correct?