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T56 cable drive speedometer modification

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Old Jan 13, 2013 | 04:08 PM
  #1  
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From: Toutle, WA
Default T56 cable drive speedometer modification

I do a cable drive mod to GM T56's that allows you to use both the VSS and a cable speedometer. I've been doing these for years now but haven't advertised much because the speedometer drive gear I use was discontinued, but just last week they became available again.

I modify your housing and include speedometer gears matched to your rear axle ratio and tire size. I've done a number of mods for people on here and over at thirdgen.org.

PM me for any questions you have.


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Old Jan 19, 2013 | 12:38 PM
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I've just got my website up for my conversion. It's a work in progress

http://www.t56cablespeedometer.com/
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Old Jan 19, 2013 | 06:30 PM
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When the mods see this, you'll get a slap on the wrist for advertising. You'd maybe get more interest in the conversions section though
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Old Jan 19, 2013 | 11:12 PM
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Didn't know where else to put it.
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Old Jan 20, 2013 | 05:07 AM
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Originally Posted by alloy
Didn't know where else to put it.
The issue is more about non sponsor advertising. The conversion section is where guys are doing engine/trans swaps, and speedo operation is one big issue. Although guys there are working on a discreet electric motor drive to attach to their speedo units which doesnt involve a trans modification.

Either way, more options is always good.
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Old Jan 20, 2013 | 11:37 AM
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I'm subscribed to the thread about the electric motor speedometer drive. Seems likes it's been a long time since any progress was made. It's a great idea if they can get it working.
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Old Jan 21, 2013 | 05:12 PM
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I had this mod done and it will work out very well in my monte carlo. I wanted to keep the stock interior and guages and this seemed to be the simplest way to hook up a cable driven speedo.

thanks again Alloy
Josh R.
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Old Jan 27, 2013 | 11:34 PM
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Ls1monte did you use your factory speedo cable? I'm looking to get use Alloy's services My Grand Prix came with the th200c trans which i think it should be the same as the th2004r trans..
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