Free body diagrams for springs and dampers in torsion

[t_n_p]

Homework Statement

I have been having a little discussion with a friend. We both know that for a spring/damper system in parallel like shown below, the associated free body diagram is correct.

[PLAIN]http://img337.imageshack.us/img337/2023/para0.jpg

But when it comes to the same system in series, we have different opinions on what the FBD should look like.

Is the FBD in the blue box or red box correct?
[PLAIN]http://img819.imageshack.us/img819/4028/series0.jpg

 

[t_n_p]

the point of discussion here, is whether the k and c forces in the red box diagram qualify as "equal and opposite forces" or whether the k/c force need a corresponding k/c force to be equal and opposite as shown in the blue box diagram.