Diff Lock for trucks with no Diff Lock v1.0 Mod

Diff Lock for trucks with no Diff Lock v1.0 Mod
This mod will add Diff Lock option to trucks that cant have diff lock
you dont need to buy a new truck just add it to tucks you already have
International Transtar
Navistar only will show if you have the DLC
i was able to add Diff Lock by making diff part a sticker addon so if you want to add stickers. one of the inside stickers will remove Diff Lock just remember that