Originally Posted by
Bianchigirll
I believe these shifters were subject to the 'teeth' breaking off the index pod or whatever shipmano called it
Yes, that was a weakness of those shifters. You used to be able to buy the indexing pod separately, and it was interchangeable between 6 and 7-speed, Dura-Ace and 600, so you could convert a 6-speed model 600 lever set to 7-speed simply by swapping out the indexing pod with either a 600 or Dura-Ace 7-speed pod.