Fits on a aam 10.5 with minor mods
For the 3 people on the Internet this may help...
A sterling 10.5 and aam 10.5 from a power wagon use the same tube size. A couple pieces cut out and notched, a few more pieces added and it fits right on to an aam 10.5 from a power wagon. Truss is beefy and should work under a lifted truck with probably no spare under the bed.
Damn man, nice mods to that truss! It's awesome to see good attention to detail. Thank you for the review!