The earlier springs & struts will work on your '05. Whats the drop of those springs? And for sure you'll want to get a set of struts/shocks to go w/ any springs yoou get. btw, have you looked or checked out the venders that deal w/ our cars? Lots & lots of parts that fit & work.Hey I have a 2005 ZX3 and was looking at a set of Skunk2 lowering springs although they are for a 2000 to 2004 focus. I was whondering if there was a big difference and if I could use them?