I have been driving now for over 2 years or so with no speedometer, well no big deal but its nice to have. I got a 930 electronic, 200 mph unit over a year ago but found the speed sensor in my 930 transmission wasn't working. I decided to toss the KEP pressure plate and while I was waiting for parts I removed the large side cover where the sensor is housed. I found the magnet was just a bit too far away from the reed switch for it to work. I ended up being able to move the magnet about 1/16 of an inch and the speedo is now working great. I thought I would share this for anyone with a 915 or 930 unit and has a similar problem.
P.S. I am now using a factory Sach's 930 pressure plate and its working perfect, pedal effort is butter soft and holds the V8 torque fine.
John