This is For the VRC Norfolk Southern C39-8
place the file Here
C:\Program Files (x86)\Steam\steamapps\common\RailWorks\Assets\VRC\Dash8_00\RailVehicles\Diesel\C398\NS01\Engine1
and here
C:\Program Files (x86)\Steam\steamapps\common\RailWorks\Assets\VRC\Dash8_00\RailVehicles\Diesel\C398\NS01\Engine2
and here
C:\Program Files (x86)\Steam\steamapps\common\RailWorks\Assets\VRC\Dash8_00\RailVehicles\Diesel\C398\CR01\Engine1