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1977 C3 small block speedometer cable replace

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Old May 7, 2022 | 10:59 AM
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Default 1977 C3 small block speedometer cable replace

good day all. i am trying to order replacement speedometer cable/s for my 77 C3 small block automatic. when i go to the websites to order, they show single and 2 cable options. i cant get under the car to see what i have.
was the 77 C3 made with both options.
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Old May 7, 2022 | 11:03 AM
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If your car has an automatic transmission "and" the Cruise Control option you would have 2 cables.
No Cruise or traducer has been bypassed just the longer single cable.
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Old May 7, 2022 | 12:16 PM
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Originally Posted by bmotojoe
If your car has an automatic transmission "and" the Cruise Control option you would have 2 cables.
No Cruise or traducer has been bypassed just the longer single cable.
Yes

The cruise control transducer is under the driver side fender if you have one and that’s where the two cables meet. Unless you use cruise I would bypass the transducer and put in a longer single piece cable. Working transducers are getting hard to find.

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Old May 7, 2022 | 04:01 PM
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I need to also replace my speedometer on my 1977 but its the longer single piece. Would like to know how you did it.
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Old May 7, 2022 | 06:05 PM
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Speedometer? Or Speedometer cable?
You were not clear on this. However. Cable replacement.
Get car up on jack stands. unscrew Cable retaining cap on trans. Unclip cable where it is clipped up in tunnel.
With hood open, from the top pull cable up into the engine compartment.
Inside car. Laying on your back. reach up and unclip Speedometer cable from Speedometer. Using your thumb to push clip and the rest of your hand to pull cable housing.
It maybe helpful to remove lower duct that goes to far left vent ball.
With cable now disconnected from Speedometer. Back to engine compartment and pull cable out through grommet.
Install in reverse order.
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Old May 10, 2022 | 10:44 PM
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Notice the spring clip at 6 o' clock , depress and pull out the cable

Tach and speedo
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