Carlos,
I dont really understand how u made the tail wheel assembly

But would it be possible to post a photo of it here so i can get a better idea of what u are saying. I would really appreciate that. Also i have a .46 size mustang that im rebuilding. It was ARF, but now it is just the shell (no covering). I want to put the retractable tail wheel in that. How would u do this because the fuz is already sheeted in balsa. Where would i make the cut? How could i make it really strong
Thanks man
Rossco