The mod adds this additional cab to the Peterbilt 579. That's it! :shock:
I always considered "big bunks" to be the holy grail of trucking, and the highest point one can reach as a truck driver. At least in the OTR department, and despite their inherent flaws. (weight, length...)
So it comes as a shock to me, as to why after all these years, there still aren't any adequate big-bunk mods available.

I won't claim mine to be "adequate" either, since right now it's only a demo. But two things give my mod the edge; 1) it's available; 2) it works
of the mod is the interior, which is not done yet.

the white squares you see in there, will be switches & control panels.
other tasks will be;
- make an optional curtain on the sleeper entrance.
- option for closed or open blinds.
- some kind of interior lights.
- optional hidden exhaust pipe.