Created a Adobe .pdf document file (8 pages) on how I converted from a standard dash cluster to a tachometer cluster. Replaced the center dash console with a gauge console (non-factory gauges). This document has pin conversion charts for the 18-pin standard plug to the 12-pin tach plug. Had to remove the pictures from the document as the file size was too large to post.
View attachment 1972 Mustang Speedometer Cluster Conversion for Tach.pdf
View attachment 1972 Mustang Speedometer Cluster Conversion for Tach.pdf