I am very curious on this subject and would like some feedback from other SS owners. The 5th number in the vin is what I'm interested in. Not sure if it was different for the years, but below is for the '14 model year.
S = 1SS MANUAL
T = 2SS MANUAL
J = 1SS AUTO
K = 2SS AUTO
I also have this thread in the 1LE section, so you can get an idea of why I ask this question. Please check it out and add a comment in either thread.