Decision 01
Repair the box body or replace it?
Option A
Repair: patch or replace damaged skin panels, straighten or replace the affected posts, reseal the seams and refinish the repaired area to match.
Option B
Replace: pull the damaged body off the chassis and mount a new or reconditioned box, then move over the roll door, liftgate and interior hardware.
Verdict
Repair wins until the damage crosses roughly a third of the body length or reaches the roof bows and floor at the same time. At that point the labor to straighten and reseal starts approaching the cost of a new body, and you inherit a patchwork structure instead of a fresh one. Ask two questions: how many years of service life are left in the chassis, and is the floor sound. A sound floor and four remaining years favors repair. A soft floor and a chassis near replacement favors a new body on a different chassis entirely.
