Doing my 1st oil change. The dealer gave me 3 "O" rings. I realize one for the primary, tranny, and engine. However, one is smaller than the other and all three plugs seem the same size. Which one does the smaller "O" ring go on.

 

On the pre 07's there are two 11105 o-rings (one for tranny and oil plug) and a smaller brown 11324 o-ring. I don't know if the 07 has the same primary plug o-ring or not.