I'll likely plug weld the shoulder backup plate to the inner panel. If using the pop rivets, I'd probably use the backup plate in FRONT of the inner panel as a template to locate/drill the holes, then put it behind the panel.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
