2 style radiator caps- where to buy what I need

Syleng1 said
I also removed the aluminum radiator and installed the factory copper installed with a shroud and clutch fan for originally. The radiator was re-cord and pressure tested. It was expensive but well done by a reputable radiator shop

Best move you ever made!

Syleng1 said
my radiator cap dribbles when the car is shut off

Is there coolant coming out the drip tube or from under the cap?

If from the drip tube, the coolant has not found it's level yet

If from under the rad cap either the cap doesn't seal to the rad fill hole, or is missing a seal.
There should be a rubber gasket that contacts the top of the radiator fill hole, and a second that contacts the inside of the rad fill hole.
Should look like this.

I have never found a different cap for a recovery system vs a non recovery system, not to say that they don't exist but I don't know what would be different?

Any of these should work fine. If these leak under the cap I would go to the rad shop and make sure the filler neck is correct for the application