I have a question regarding the speedo gear ratio in the ZF: The 5DS25/1 has a ratio of 2.4 (5 teeth on output shaft and 12 on the speedo shaft), the /2 has a ratio of 2 (6 and 12). The 90° adapter has a 1:1 ratio in both versions. Do they have a different ratio in the speedometer? Or is something else not original in the above said gear configurations?
Background is, that I have a slightly worn worm gear with 5 teeth and a perfect one with 6 teeth and wondering what to build in now. Mine is an early 71 with the /1.
By the way: I have already checked the forum regarding the connection from speedo cabe lo 90° adapter - it should be simply plugged in. But I have desperately tried to get it out of the adapter. There is a small tube in the adapter into which the cable is plugged in. This tube seems to be squeezed to the square shape. Is this original or might it be that someone fixed the cable by squeezing the tube? I hope it is clear what I mean...
Thanks in advance for your help.