[Tom-MI]

There are several ways to add an overflow tank. What I did to my '35 was to add an overflow tube (available from many sources) to my radiator housing. I pop riveted a couple of case nuts to the radiator side panel, bolted the tube to the radiator frame. Finally, I just ran a rubber hose from the radiator overflow to the bottom of the reservoir. The second hose is an outlet for the overflow if it fills up.

Hope this helps.