Galaxy / Mondeo timing belts / chains??

Hi, I have a Galaxy 2.3 Zetec (1999) and a Modeo 2L Zetec / Duratec (2001) (Mk3).
Both are approaching 100K miles and 10 years old.
I've found various info on google but nothing definite - do these use belts
or chains, and do they need replacing?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.