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installing a tachometer

1K views 5 replies 5 participants last post by  2.5FearFactory 
#1 ·
I am installing a tachometer in my '87 s-10 2.5l and it says to hook up the cabel to the negitive on the coil but i have 2 negitives can some one help please.:confused:
 
#2 ·
It's about 5:15 AM right now but I'll look at mine and let you know after work around 3:30PM.
 
#3 ·
tach

ok thanks
 
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