2000 explorer oil leak

I have a 2000 Explorer, 4.0 push rod with 55000 miles and now have a small engine oil leak. Die indicates it's coming from the engine
front cover (timing belt cover). It is a minute leak that's undetectable in the dipstick. Has anyone out there in Explorer land done this type of job (replaced the gasket)? Is it difficult?
Hank from PA
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com 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.