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Old 12-25-2009, 12:37 AM   #2
dfwright
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Join Date: Jan 2009
Location: San Antonio, Texas
Posts: 1,376
Re: Mystery Hose (at least to me)!

That is the transmission controlled spark device. You can find more information on this thread mystery wires

Where several of us learned all about them...

Apparently a lot of us had this device disconnected on our trucks at some point in the past, and it is the consensus that it should remain so.
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1972 C10 LWB, 350/350

Deconstruction began 5/2009, mostly completed restoration, 5/2017

Last edited by dfwright; 12-25-2009 at 12:38 AM.
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