I wanted to have a look at the Electrical Connection on the Sending Unit on my Sunliner because the Dash Gauge is erratic.When I took off the Cover in the Trunk Floor the Sending Unit is not there. Its forward of the cover and not accessible without dropping the Tank. When I had a look at the Tank underneath the Fuel Outlet Pipe is welded to the Tank. Does not have the usual flared outlet where You screw the Fuel Line to. Someone has added a large inline Fuel Filter at the Outlet which is fine. Probably not been changed for Years which I will do. Its a replacement Tank. Annoying that the Sender is not accessible. Has anyone run across this type of replacement Tank? An older Repro maybe?