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Topic: Transmission Interlock Cable

in Forum: C3 General Discussion

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Transmission Interlock Cable (1/3)
11/2/23 11:16am

rkeithwhitt
Limited Member
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Minor Hill, TN - USA

Vette(s):
1970 LS5 Coupe 1979 Coupe

Joined: 6/9/2016
Posts: 5

I am working on a 79 that can be shifted into drive with the ignition locked. I figured it was the interlock cable, but there is none. The steering column does not have a place to hook one up. The AIM does not show a cable on the automatic transmission installation section, but the steering column section shows a place for the cable at the firewall, though it does not show the cable itself. What am I not seeing?

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Re: Transmission Interlock Cable (2/3)
11/2/23 6:01pm

manchestershark

Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 2390

Hi, Starting in 1977, the interlock only locked the steering wheel. Transmission no longer has a lock connected to the ignition switch.

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Re: Transmission Interlock Cable (3/3)
11/5/23 2:13pm

rkeithwhitt
Limited Member
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Minor Hill, TN - USA

Vette(s):
1970 LS5 Coupe 1979 Coupe

Joined: 6/9/2016
Posts: 5

Mark,

Sorry for the delayed response. I've been on the road...

Thanks for the very helpful info. My 70 has the interlock, so I assumed (wrongly!) that the 79 would too. Guess I'll just have to make sure it's in Park when I shut it off 😊

Thanks again,

Keith

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