green1 and Redfish - Thanks for the info. I have an intermittant gas gauge after installing a new gas tank and sending unit and I'm basically ingorant when it comes to troubleshooting electrical stuff. Your info gives me enough limited knowledge to start with and may help me trouble shoot.
I'll get under there one day and see what I find and I may be back in here with some questions. Unfortunately - I have about a dozen things to work on and the gas gauge is somewhere further down the list than the fact that the gasket that came with the sending unit seems too thin because I have a slight gas leak.