I was looking at Toyota's official PDFs on CT and it listed VSC (vehicle stabliity control) and DAC (downhill assist control) as standard features for all 2004 4x4s. Does anybody know if this is true, I thought it was an option. anyway here is the link, its under the features link.
http://www.customtacos.com/tech/index.php?page=index_v2&id=89&c=2
http://www.customtacos.com/tech/index.php?page=index_v2&id=89&c=2