Parts link does not show the Moog 3199 for 2005 vehicle. But, if you look at this link from Moog, they have information on the 2002-2005 Jeep Liberty ball joint failure. It's bulletin 27010 on the first link:
http://www.moogproblemsolver.com/library.aspx
or this link directly:
http://www.moogproblemsolver.com/downlo ... iberty.pdf
Also, if you use rockauto.com partsfinder, they show TRW, Spicer and AC-DELCO using the same balljoint for the 2002 and 2005 Jeep Liberty. I also found that of those on that site that listed both the 2005 CRD and V6 model balljoint, use the same balljoint, in spite of the heavier weight of the diesel engine.
Draw your own conclusions.