390 w/ C6 downshift Q

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Jan 25, 2006 | 02:01 AM

hoxiii

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From: Pittsburgh

390 w/ C6 downshift Q

In a vehicle that has a 390 mated to a C6, is there supposed to be a transmission kick down linkage off of the carburetor, or is it all done by vacuum?

Justin

Jan 25, 2006 | 02:58 AM

ford390gashog

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From: Brentwood,CA

there is a linkage. its a big rod.

Jan 25, 2006 | 05:41 AM

F1rocco-NY

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From: USA_NY

What type of problem are you having..Or ya just putting her back together.....

Jan 25, 2006 | 07:52 AM

User 71024

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My 74 has both. 390 C-6.

Jan 25, 2006 | 12:11 PM

ivanribic

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From: Spokane, WA

The vacuum modulator will control when the truck shifts to the next gear (all C6's have this unless they use a manual valve body) but the kickdown lever instantly shifts down when it's pressed for quick passing. They used the rod out of the factory. Personally I like to swap in a kickdown cable instead. This makes it easy to use car spacers, or different carbs if you choose to.

Jan 25, 2006 | 12:13 PM

ford390gashog

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From: Brentwood,CA

Lokar makes a good kickdown cable.

Jan 25, 2006 | 07:56 PM

hoxiii

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From: Pittsburgh

Putting it back together. It's actually in a '67 TBird, but it's all the same. The car is complete, but alot of it is in the trunk and the backseat and i don't recall seeing a kickdown lever. It may already be on there, but i just picked the car up and have only had one good chance to look at it and can't remember if i'd seen it or not.

Next time I'm going to have a chance to mess with it is on friday, so i'll check it all out then.

And honestly this is the first automatic I've ever owned. I know what stuff is ::typically:: there, but I'll probably be asking alot more linkage type questions in the near future.

Thanks!

Justin