I am trying to locate the pigtail that I need to connect my T56 to a Electronic Speedometer from Classic Instruments. The new speedometer comes with a Electronic Transmission Signal Converter box (SN77) that connects the T56 to the speedometer but I need the cable that plugs into the transmission to the SN 77. Anybody have any ideas what I can use and where can I get it?
Is the speedometer pigtail (GM 88987978) the correct connector?