Apprentice question
Verify first
Verify before you commit. Cheap to catch now.
A damper shaft needs solid support. Reinforce the axle area or replace the damaged fitting before relying on the damper.
['A heavy damper blade in high-velocity air can twist thin spiral skin around the axle holes. Once the wall warps, the blade can jam open or shut.', 'Inspect the damper, patch/replace damaged metal, and use an approved backing plate, bearing block, or factory damper fitting so the shaft stays square.']