The A few mods for Extreme Trucker 2 Steam Guide is a fantastic starting point, offering working links to some of the best classic modifications.
Adds dozens of new, detailed trucks.
Installing mods for this game is relatively straightforward. 18 wheels of steel extreme trucker 2 mods
Download the mod, and place the .scs or .zip file directly into this mods folder. The A few mods for Extreme Trucker 2