This is a U25B Union Pacific #633, #639 and # 640 re-paint of the DTM GE U25 Pack01. With and without driver for each number.
You will need the GE U25 Pack01 from DTM first.

Installation
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1- Open the zip archive, find the Assets folder, drag it to your Railworks folder. Answer "Yes" to the prompt about merging the Assets folders.
2- Drill down to RailWorks\Assets\DTM\GE U25 Pack01\RailVehicles\Diesel\U25B\SLSF\Folder.
3- Copy GE_U25B_SLSF.GeoPcDx to your Assets\DTM\GE U25 Pack01\RailVehicles\Diesel\U25B\UP, UP2 and UP3 Folders.
4- Drill down to RailWorks\Assets\DTM\GE U25 Pack01\RailVehicles\Diesel\CabView\GE U25B Folder.
5- To allow the repaint showing up in the scenario editor and to see the repaint from inside the cab you have to
 copy any geopcdx file, for instance the U25B_Cab_SLSF.GeoPcDx and paste it three times at the same location. Change the letters SLSF by UP in the first folder,
 UP2 in the second one and UP3 in the third one.
 Open the first file with TS-Tools. Click on Search and Replace, write slsf in lowercase in the top window and up in the lower one. Then click on Replace All.
 Do the same with the two other folders.
 Save it and that's it.

To use in a scenario
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In the scenario editor, enable content from DTM GE U25 Pack01.
Now you should see the GE U25B UP, UP2 and UP3 units.
I want to thank Chacal and Buzz456 for their precious help.


Enjoy,
jtousign