Changelog
Produced some edits and changes:
Added the ability to install two headlight options: standard and exclusive (through a new locator)
Corrected inaccuracies with truck lighting masks textures
Corrected the shadow in the cabin so that the sun will no longer bore the salon inside when it is behind
Slightly threw the polygons where it was possible
A few more small edits

It seems that nothing broke. It should work at 1.42. Try, but first I advise you to sell the old version of the truck.

Credits
SCS, Term99, Shaneke Game, updates  & edits Kororuz