dead tach

Hi folks - the tach went dead on my 93 Dakota the other day. Noticed it when I started the truck one morning. It's pegged down on the left side.
Any idea what caused this? Could it be a broken wire or cable? If not, do I need to replace the entire cluster or can I just replace the tach itself? Thanks - Chris
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Site Timeline 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.