you need this mods bellow to work with the skin:
1.scania rjl
https://forum.scssoft.com/viewtopic.php?f=35&t=177963
2. tandem addon rjl
https://forum.scssoft.com/viewtopic.php?f=35&t=246483
3.all chassi addon (download ver 3,0 and Fix 1.39)
https://forum.scssoft.com/viewtopic.php?t=271663
4.NTM Semi Trailers + Tandem Addon
https://forum.scssoft.com/viewtopic.php?t=250206
Credits:
[CargoTLN]Lukas(CH)
DOWNLOAD 377 KB