Leaderboard

Typically, it's known for suppressing radio interference, buzzing, so it's not really necessary. I've used them to make my tach work right though. Electrical noise can cause problems. Looks like any alternator condenser would work. You can get them at the local auto parts store. Not a huge deal though. There are two #23's. One at the alternator and one at the coil. http://www.carpartsmanual.com/datsun/Z-1969-1978/electrical/radio-stereo-clock/from-aug-76/23