First step, take out the trunk liner. There are a number of nuts on the inside of the trunk. The light assembly actually has bolts holding the light assembly on. http://www.marksatterfield.com
If you remove the panels from the interior of the trunk you should find the bolts that hold the taillamp assembly to the body of the car. Simply remove the nuts and this releases the lamp assembly.
Best left to a gunsmith.
Order the book for that model online or at your local parts store it will have the pictures and instructions on repair
The oldest model of the Thunderbird was from 1954 when Ford brought the first model off the production line. The first Thunderbird was sold the in October of 1954.
sedan model: from the trunk pull out the carpet retaining screws/plugs to access the tail light assembly mounting screws. pull them out, pull the tail light assembly out. from here you can replace any needed bulb.
The first Ford Thunderbird model saw the light of the day September ninth 1954, and were made available for public sales October the twenty-second, 1955.
1995The first year for the Thunderbird was 1955. That first Thunderbird was the most popular model.
It depends completely on what year it is. If it is a composite style headlight (newer years), then the bulb should remove from the back of the assembly, while the assembly is left in the car. If it is an older year model, then the assembly is held in with two screws that can be reached from the front of the head light.
drop the tailgate and locate the two Phillips head screws that are recessed into the side of the truck bed that look like they go into the light. remove the screws carefully holding the light assembly so it will not fall. twist the light socket until it comes loose from the assembly replace bulb
This requires the services of a gunsmith.
1955.
The Windstar, The Mustang, The Thunderbird, The Tauras,