driveshaftshop dss sr20det 1piece aluminum driveshaft 240sx problem

[Jturbo]

here is my driveshaft shop 1 piece aluminum out of my 350hp 5 speed sr20det. I haven't seen anything like that all over the internet. I have the driveshaft for almost 2 years sometimes I hear a little rubbing noise but still drive good but as you can see something inside the tranny is rubbing....any help guys

http://i119.photobucket.com/albums/o136/jupa28/IMG_00000495_zps7bd79fa7.jpg

here is the photo closer look

http://i119.photobucket.com/albums/o136/jupa28/IMG_00000496_zps793be6a6.jpg