E Rustler/Stampede Ext Arm CVD Cup Size?

[jpoprock]

Hey guys... I snapped one of my drive cups somehow. The FLM kit wasn't right from the get go and i had to file stuff to get certain things to work. So, last night, one of my cups snapped in half! I need to get some kind of cup or a set of cups, and I'm not sure what size/brand cup I can get, until I hear back from FLM. I have no clue what size the FLM cups are, or how many mm the inner hole is, etc. So, if you can help, I would appreciate it! I'm going to Hobbytown USA tonight, so hopefully I will know before I go. I have never had a lot of confidence in the guys that work there.

Thanks!
jason