00 Windstar Tranmission Coolant Coupling Leaks - Replace Orings: How?

The top coolant line going into the top of the radiator is leaking.

How in the world do you replace the orings that are deep in the fitting? :banghead:

Thanks in advance,
Tom

I looked on the rockauto website, I would order "oil cooler line connector" which is listed under transmission/automatic.
It is Dorman #800601
This is the connector that screws into the radiator and it looks like the "O" ring is included with this part.
$7.11 plus shipping.
They cross to the following 2 FORD #s 1F2Z7D273AA, F6DZ7D273BA