Caja regatta noise SC 92 Help

Hello friends, someone can tell me with a simple comment to see what I do I have a problem I think it is the box recently changed a ruleman and the dough on the driver's side and I am a noise in the box when I accelerate it as it scrapes when the clutch floor and walking without change the noise is going the noise, the more you will see the more you can check the oil of the box. Really this forum is very helpful for all thanks