Maybe this has been in the forum a thousand times but I didn't find anything about it

I planning to up grade the struts of my contour, I have already bought a set of eibach pro kits springs, I have had previous experience with Bilstein and they are great.

so I went with my local dealer and told me that Bilstein doesn't make the rear struts for contour.

My doubt: Is it safe to just change the front struts and keep the OEM in the back?

please advice