[durabostbay]

...from Eastern NC my name is JC and am looking some repair advice for my 04 X (head gaskets maybe) she is my wifes ride and we bought her new 160K on her now. My daily driver is 95 4X4 V6 hard body with 180K that I got new when I turned 16.

 

[JacCro]

What makes you think its the head gasket.

 

[durabostbay]

Coolant leak appears to start where the head and block meet near #6 cylinder.

 

[JacCro]

http://www.xterraownersclub.com/forums/ubbthreads.php?ubb=showflat&Number=677238

The link should kind of give you some tips on replacing the head gasket and how big of a job it is.