tach wiring diagram?
 

i have recently replaced my original dash with the hard to find tach dash -

there is a 3 prong plug on the back with the wires clipped off (black, borw and pink wires). where do these run to?

pic included:

Re: tach wiring diagram?
 

also, i have been running a set of sunpro gauges for my temp reading- how does the temp sensor hook up to the cluster? followed the traces and it seems to be a brown wire (if this helps)

Re: tach wiring diagram?
 

If you take a really close look at the back side of your cluster right where the tach terminals are at you will see the following marks on yours as well......

12V
GND
COIL

http://67-72chevytrucks.com/vboard/a...1&d=1200514397
http://67-72chevytrucks.com/vboard/a...1&d=1200514397
As you look at the terminals on the back of the tach, you'll see two (2) side-by-side and a third one below. Going clock-wise from the top most terminal they hook up as follows;
12V switched power
Ground
Tach signal- Run this lead through the firewall directly to the tach lead terminal on the H.E.I. DISTRIBUTOR CAP.

Re: tach wiring diagram?
 

BLE youre the best... im glad someone else besides me spends WAY too much time on here...

Re: tach wiring diagram?
 

and in all honesty, i really didnt look closely at it...

Re: tach wiring diagram?
 

Don't fill bad, I did the same thing..

Re: tach wiring diagram?
 

It's + and - from bat and to the + of the coil!! maybe

Re: tach wiring diagram?
 

hooked it up - works wonderfully! thanks for all the help again BLE