I'm not sure if this will help but the parking brake mount serves as the inner fender to cab mount on the drivers side,the passengerside inner mounts directly to the toeboard/firewall.

Parking brake mounting bracket.


1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.