Digital vs analog


Active Member
Nov 29, 2012
My 87 GN originally had the digital
Instrument cluster. I would like to switch to analog but have a few questions. I have either the factory dash harness or one from a plain 86 regal. I planed on using the 86 harness but I would like to add a factory tach, is a tach signal wire already in the harness or do I need to add one. Are digital and analog harnesses the same?
Thanks, I figured they would be different, does anyone sell a kit with factory tach and wiring?