Wiring Diagram For 1970 Chevelle With Gauges. 3 connect the purple wire of the speedometer wire harness to the white wire of the sn16 pulse signal generator. I am starting to think that gm never published a wiring diagram for these dashes with working gauges.
I dont know how many wires you have to work with but the one that powers the tach should go to the pigtail wire on the harness for the coil dist cap. Car clubs would be a good place to start. The gauge is not the stock gauge it also says fuel on it on the front side so im 100 sure is a fuel gauge.
71 ac wiring diagram 70 or 72 same team chevelle.
Correct color coded wires that can be spliced into your original harness. Each diagram features factory colors on all wires including tracer wires. 1970 72 super sport dash gauge conversion kit for chevelle el camino monte carlo opgi blog our 3 spoke is factory. Simply remove your old column.