Actually, I replaced the Alternator first. Looked at the old Voltage Regulator and it was worn but still decent. Returned,replaced the battery that kept losing charge ( 4 months old ). Haven't tried leaving the new one connected over long periods of time yet but it does ( when attached ) start much more strongly. Appreciate your responses. Anxiously awaiting more. Does anyone have a diagram. Those Vacuum Diagrams posted recently were excellent! Thanks