What is the dimension of one of the extensions for Ram?

The correct choice identifies the dimensions of one of the extensions for Ram as 2x17.5 inches. This dimension is significant because it aligns with typical specifications for certain truck or vehicle applications, particularly in relation to ensuring the structural integrity and compatibility with other components.

The dimensions indicate a length of 17.5 inches, which is often necessary for providing adequate leverage or support in connections, while the width of 2 inches suggests stability and strength. These measurements are crucial for extensions that need to bear weight or withstand forces during operation.

When selecting parts like these, ensuring accurate dimensions is vital for safety and functionality, which is why the chosen dimensions provide the necessary specifications for effective truck operations and performance.