I have a diagram for a Sun EB7A that I can email or go to the link in my signature and I will post the diagram.

My sun tach is in place and doesn't work well, one day it will read 2500 rpm at 55 mph and the next day it will read 3200 rpm at 55 mph. I have been told this is what to expect from a sun tach and the solid state conversion is the way to go.

Truckedup are you happy with the solid state conversion? I received a price quote from Williamson's of $180 including shipping handling to convert my sun tach.


Blaine Dumkee
59 GMC 9314
Fort Smith NT
www.flickr.com/photos/northerngmc/