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Old 05-02-2013, 11:28 AM   #144
chevytrucking
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Join Date: Feb 2008
Location: Cedarville, AR
Posts: 15
Re: 67-72 Electric speedo

Quote:
Originally Posted by ls1nova71 View Post
Pretty sure it won't work with out the PCM. It needs a 4000ppm signal, and with out the PCM I don't know how you would wire it or calibrate it. THe PCM has a single wire coming out of it for the speedo to hook to, where as the VSS has two.
I've been trying to figure out exactly what type signal is coming directly off the VSS on the tailshaft and I came across this:

http://www.dakotadigital.com/index.c...roduct_id=126/

Looks to me like this device would make this swap work without a pcm/ecm and it's only $89. Is so, it should work with any electronic trans with no computer. Anybody have any first hand experience with this?

I'm really trying to find a way to make this work!
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