Originally Posted by DuckStang
How would that affect the longevity and the structural integrity of the ball cup??? Can't deny that you are weakening it. Any of you guys have had issues where the ball cups get egg shaped and pop out???
I did that to all my Tamiya ball cups and found they weakened quickly. I used a body hole reamer. It was a lot easier to work on the car with the holes but I eventually went back to regular ball cups for longevity.