About this 3D model
This is a Traxxas Ultrashock spring retainer that can be locked on the shock shaft using a 2X10MM screw. The stock Traxxas spring retainer has a tendency to pop off and get lost during operation. This spring retainer eliminates that problem. I have tested these using PETG, PLA, and CF-Nylon with great results. They can be printed WITHOUT support structure although I do recommend printing them in a small batch using a brim. You may need to clean the inside of the screw loop using a file or Exacto knife after printing.