Width of chassis rail

[greenie1981]

I rang up a few places about trying to get my new tray mounted, they said I could get mounts made if I could find out if my chassis width was 1080. Does anyone know If that is a correct width for a 2009 dual cab d40 spanish built

 

[nuckin futs]

1162 o/s measurements at tow bar, and is 1170 behind cab. 2007 spanish built