Now for the fun. The transfer case on the X frequently do NOT have a magnetic drain or fill plug. You can buy them for a reasonable price from Cobratransmission.com in Miami.
The differential's also are lacking - the BEST are from a guy in North Carolina (
http://www.drainplugmagnets.com) who sells them on the internet. Lifetime oil in a compartment with no filter, very scary.
LESS SCARY: Synthetic oil & magnetic drain plugs .... It's my holiday present to myself