Drivetrain questions
 

I've only had my 05 coupe MT for a few months, so I'm still learning. Yesterday, on the interstate, I went from 6th to 5th and let the clutch out pretty quickly. I could hear a loud knock in the rear differential which I guess is the drive shaft engaging the differential. Is this noise normal?

Also, I've only spun the tires twice since owning it. Is it normal for only one wheel to spin?