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th400 users and speedo?

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Old 03-31-2013, 09:25 AM
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Default th400 users and speedo?

what do you guys do to make this work?

I have a 94 with a 6.0/th400 swap with ls1 pcm and ls1 front brakes if that matters.

I would like the stock speedo to work!

What needs to be done
Old 03-31-2013, 09:40 AM
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Reluctor wheel and sensor out of a 90s truck u can peice together from gm dealer i dont have part numbers handy or these guys or tci can hook u up or use your front wheel speed sensor might just have to adjust your values in the tune for vss http://www.transmissioncenter.org/GM...eter_Gears.htm
Old 03-31-2013, 09:55 AM
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so my 1500hp built th400 I have to bring back to a shop for that to be installed?
Old 03-31-2013, 09:57 AM
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I got the 90s truck setup but think the sensor maybe no good, so I've been looking into a GPS setup I've heard that you can wire it into the trans pigtail to work with the stock cluster.
Old 03-31-2013, 10:04 AM
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Here is a link to the gps module. http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=837/prd837.htm.
Old 03-31-2013, 10:05 AM
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On my 98 i wired it up to use the front vss and fudged the numbers until the speed was right.



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