Which ones did you buy, the Weltmeister or the Pelican?
Porsche 911 & Carrera Cables & Controls - Page 6
I recently installed these on a bellcrank and they fit good. I was surprised, because I too had the same problem as you several years ago when replacing the plastic bushings on my '87 bellcrank. The bronze ones didn't fit (Weltmeister I think) so I just stuck the old plastic ones back in there until I obtained some new plastic ones