a-arm help

I have a 2005 Chrysler Pacifica and I need to replace the a-arm bushings. I have found out that I have to replace the complete a-arm. [per Chrysler] I have not even looked at the assembly yet, but hope to get to it this weekend. What does it take to replace these? I have completely rebuilt our 03 Malibu’s front end, but I have not had to do much on the Pacifica, but the warrantee is dead now and these are not covered under the extended warrantee. A basic breakdown will get me headed in the right direction, but more is always better.

tgf