When you are unlocking them they don't automatically go back to dds files. You have to look for the V3O file that you unlocked. Here are the instructions again: Find your dds file Change the name from large_ambulance.dds to large_ambulanceTT.v3o Then click yes to the file change/entention and then open the editor Once the editor is open load up your mod. Then go to UNPACK and find the large_ambulanceTT.v3o file, click on it, and the click OK Exit the editor Go back to the large_ambulanceTT.v3o file and change it to large_ambulance.dds Try to do it the way I just explained and let me know what happens.