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Old 09-30-2016, 07:00 PM   #1
Bandit130
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74 C10 TH 350 Speedo Cable Question

There is a housing at the end of the speedo cable that connects to tranny. What is this for and what is the name? I have dealt with speedo cables before, but they were directly connected to tranny and no housing between. Also, does the housing have to be there?

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Old 09-30-2016, 09:09 PM   #2
Big Port Jimmy 6
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Re: 74 C10 TH 350 Speedo Cable Question

Little offset aluminum box? If so its a factory ratio adapter. HTH Jay
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Old 09-30-2016, 09:35 PM   #3
Bandit130
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Re: 74 C10 TH 350 Speedo Cable Question

Yes looks like a small aluminum box or gearbox. Thanks for the info. Does it have to stay or can it be removed and connect cable directly to trans?
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Old 10-01-2016, 12:32 AM   #4
Jaysonb
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Re: 74 C10 TH 350 Speedo Cable Question

If you clean it up, the ratio should be stamped on it. If it's 1 to 1 you should be able to remove it, if it's any other ratio, it will throw off your speedo if you remove it.
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