ETS2 - Fix for Rigid Chassis Pack for All SCS Trucks (1.39.x)

Fix for version 1.39x and adapting for version 2.4.2 for the Kast mod package,
but I only fixed the defs, I will still fix the truck files.
There are still some things that are not correct,
like the rear lights,
the NARKO kuzov and Volvo trucks, because of the DLC

Authors: iconRJ