Ironically enough I used to have a 2004 xterra and I had Rancho's on it... Can't remember the series but they lasted at least 50,000 miles when I had the truck and were still good when I traded it in on a 2012 xtrerra.

 

Lucky8 sent me a replacement TF shock after it died with only a couple thousand miles on it, now I have 2 leaky rear shocks with about 20k on the clock, and the rear 2" Medium springs sag, but it still rides good surprisingly...I need to update soon.