Level 10 problem

[nutz]

I went to install the level 10 today on an RT Pro and i noticed there was no back washer or (1)in the parts list for level 10. Did any one else have this missing or am i missing it. I thought maybe it was the the back part that came out of the stock power tube setup but i am not sure...

Some help would be nice

[TransMan]

Check to make sure you are not mistaking one of the orings for it and remember its white and about the same size as the orings its just falt.