LT1-LT4 Modifications 1993-97 Gen II Small Block V8

LT1 in a 3rd gen

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Old 05-18-2007, 04:28 PM
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Exclamation LT1 in a 3rd gen

I have a 1990 Trans Am with a 94 LT1 in it and a built 700R4. I need to hook up the speedometer to the LT1 computer, can someone direct of post a picture of which wire is the speedometer output on the computer so I can splice it in there?

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Matt
Old 05-18-2007, 05:25 PM
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I assume you're running some sort of dummy box for the computer since the 4L60 isn't computer controlled, and the computer for a 94 wants a 4L60E. I would assume that box would link up between the computer and the tranny. Or just go find a 4L60E and toss it in.
Old 05-19-2007, 08:25 AM
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check shbox.com, there are wiring pinouts shown on there. you'll have to look and see as I don't remember which one it is off the top of my head




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