Installation for non IVPack users:
-Start OpenIV
-Make sure you have a modified gameconfig.xml that could handle add-on vehicles with no problem, if you have a modified gameconfig installed, skip this step
-Put the "ivboxtrucks" folder on update/x64/dlcpacks/
-Click Edit Mode, then go to update.rpf/common/data and find dlclist.xml
-Extract and edit the dlclist.xml
-Copy this line:
		<Item>dlcpacks:/ivboxtrucks/</Item>
-Save it and drag and drop the dlclist.xml to update.rpf/common/data/
-After following the whole step, start the game
-Model names: - steed
	      - yankee
	      - yankee2

Installation for IVPack users:
-Do the same first three steps as above
-Put the "ivboxcomp" folder on update/x64/dlcpacks/
-Click Edit Mode, then go to update.rpf/common/data and find dlclist.xml
-Extract and edit the dlclist.xml
-Make sure to place the "ivboxtrucks" line above the "pres" line, after that, place the "ivboxcomp" line below the "pres" line
-Example:
		<Item>dlcpacks:/ivboxtrucks/</Item>
		<Item>dlcpacks:/pres/</Item>
		<Item>dlcpacks:/ivboxcomp/</Item>
-Save it and drag and drop the dlclist.xml to update.rpf/common/data/
-After following the whole step, start the game