Which statement regarding the replacement at factory seams is true?

The correct statement regarding the replacement at factory seams emphasizes the importance of removing damaged rails and panels prior to restoring the vehicle to factory specifications. This procedure ensures that structural integrity is maintained and that the new parts can be accurately aligned and welded in place, adhering to the original design and safety standards of the vehicle.

Identifying and removing all damaged components is critical before any replacement occurs because even minor damage can compromise the fit and performance of the new parts. By addressing this first, technicians can ensure that the repairs are effective and that all new components can be secured properly, maintaining the vehicle's structural integrity and safety.

In contrast, the other statements do not reflect best practices for collision repair. Returning damaged parts to factory specs without removal may overlook underlying issues. Not checking panel alignment before welding could lead to misalignment, compromising the overall assembly's integrity. Lastly, the assertion that nonstructural outer body panels do not require specific positioning undermines the necessity of precision in all aspects of panel alignment to ensure quality and safety in the repair process.