As the title states, this is a 4x4 tail housing, plus associated stub shaft and gaskets to adapt a transfer case to a 5r110 transmission. Sold the van with the 5r110 in it so I no longer need this, and from what I gather - Ujoint doesn't sell this on its own anymore either. $400 - either picked up in CO or shipped on buyer's dime. It's not big but it's not light.
Well apparently Ujoint was absolutely hosing people on these with their pricing of $489, all of the parts are available for $175. Dropping the price to $150.