I just looked through my gear collection, and there is a big difference. The older gears have very sharp edges inside and outside, while the newer ones have much more rounded edges. This would explain why the newer gears slip, there isn't as much plastic to push against the rod. I wonder why Peeron and Bricklink didn't differentiate between the two versions, of if anyone ever really noticed?Formendacil wrote:Must be the age difference. I only have the newer ones (assuming the change came within the last three years or so)
My brother, who has some older ones, has no problem.
--Anthony