I would like to stick to the original as much as possible.
I live in Freetown so plainfield CT is about a hour half ride for me.Where in mass are you? If you are near 395 (290) area there is a great radiator shop in Plainfield CT called BGR radiator in the Plainfield industrial park. Ask for Steve.
If you know where the Mass pike meets up with the 290/395 exchange… they are about 25mins south of there.
Syleng1
Top tank is fine the bottom tank i think where the leak is coming from. the fins are rotten out pretty bad.Rebuilt? Do you know if it needs a new core or one of the tanks are damaged?
Yes Glen Ray is the specialist, but '75 a square top and so if you can find a local shop, they should be able to recore.