Which of the following is a step in performing a 3rd Door Conversion?

• A. Remove the front bumper
• B. Cut the roof across the A post
• C. Rocker panel spread
• D. Pry the dash from the instrument cluster

Answer: (C)

Creating a third door relies on widening the lower side opening, and that’s accomplished with a rocker panel spread. By spreading the rocker panels outward, you increase the doorway width at the base without cutting through the roof, preserving structural integrity while allowing access to the interior for the third door operation. This targeted widening is what enables the third door to be formed and used effectively. The other steps aren’t related to creating a new door opening: removing the front bumper is a general prep step, cutting the roof across the A post would compromise the roof structure, and prying the dash from the instrument cluster deals with interior components rather than opening up a door.