Riveted all flush rivets on the battery box and retaining strap. Checked final fit by securing firewall hinges to the work table surface and pinning all hinges together around the actual battery.
Battery has a good snug fit. No movement inside the retaining box.
Riveting the battery box right side hinge in place with flush rivets from the inside.
Flush riveting the hinges on the battery retaining strap.
Complete battery box clecoed to work table surface to check final fit. Battery is secure.