You have to export the 3ds-file as an .obj-file (with Autodesk 3dsMax) and then you can export this as a .yft-file via Zmodeler. But this won't bring you a working GTA Vehicle. If you wan't to convert a professional model, which are often in 3ds format, you have to convert it and this is a little bit more time-consuming. But if you want to that, use this:

https://scrat-tech.fr/creer-vehicule-gta-v-tuto-complet/
https://www.gta5-mods.com/users/SCRAT

I don't know why the images I posted with my question are not there, but here are the links:
https://imgur.com/EEavzk5
https://imgur.com/1iMson0
https://imgur.com/2q6yfTl

I'm about to convert a Volvo V60 to GTA 5 and i'm almost done. I got the .yft-files, thus I have a functional vehicle in the game, but with no textures. I put all the textures I used into the .ytd-file and I just don't get why the model doesn't receive them.


I'm convinced that there is a pretty easy solution, which I just don't get.
Thanks