Traxxas Lower Spring Retainer

A component of the parts kit 3768.  It is a cone shaped lower spring retainer for my 4x4 Rustler vxl.  

I got my ruslter and took it out for a spin.  It collected every kid in the neighborhood!  An hour later after they had all had a bash, I noticed the spring retainer was missing.  A few design iterations later, I printed one in Pruasment PETG orange.  

Everything should fit pretty snug.  I made the gap a little tight so it will be harder for these to pop off in the future.  I had another bash session and so far so good.