4l80 in a 73' (speedo conversion?)
Thread Starter
Teching In
Joined: Mar 2017
Posts: 3
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4l80 in a 73' (speedo conversion?) Can someone steer me in the right direction. I've done a search.... and so far no luck.
I have a 4l80 in a 73' pick up, and I'd really like to get the speedo to work, without changing the whole cluster?
I heard of some type of electronic adapter that can be added behind the speedometer, and something plugged into the wires on the tranny, and it would work??
Any advise/direction would be much appreciated.
I have a 4l80 in a 73' pick up, and I'd really like to get the speedo to work, without changing the whole cluster?
I heard of some type of electronic adapter that can be added behind the speedometer, and something plugged into the wires on the tranny, and it would work??
Any advise/direction would be much appreciated.
TECH Enthusiast
Joined: Sep 2016
Posts: 518
Likes: 0
From: North Jersey
I think you need to change the rear housing and maybe the tailshaft for gear driven speedo.
http://www.shiftworks.com/tailhousing.htm#4l80E
http://www.shiftworks.com/tailhousing.htm#4l80E
If you need a square wave signal like 4000ppm or similar you can use the Dakota Digital SGI-5E. It'll convert the VSS sinewave signal to be compatible. Look at the instructions for application #3 http://www.dakotadigital.com/pdf/650528a_SGI-5E.pdf
