Quick shifting C6

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Mar 3, 2005 | 10:06 AM

Mike G

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Joined: Nov 2002

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From: Littleton, CO

Quick shifting C6

Hey gamg, need some quick guidance. I just finished the build up on my 65 which included the addition of a 390 and a C6 that I refreshed. On our maiden voyage, everything appears to be in order but for one thing. I have only been running in the "D" position, granted this has been around the neighborhood but the 1-2-3 shift seems to all occur rather quickly. They are not hard or sticking and I have not really put any peddle behind it off the line yet. A Transgo kit was installed also.

Recommendations? --Mike

Mar 3, 2005 | 12:12 PM

mark a.

Lead Driver

Joined: Mar 2004

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Your vacuum modulator should have a adjustment inside it that takes a small allen wrench through the vacuum line plug in. Turning it in will slow down the shifts. Try 1 turn at a time until you get it where it should be.

Mar 3, 2005 | 03:43 PM

Mike G

Thread Starter

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Joined: Nov 2002

Posts: 3,447

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From: Littleton, CO

Crawling under it tonight! If I remember correctly, I went with a black stripe modulator too (it's been 6 months since the work though)

Thanks

--Mike

Mar 3, 2005 | 08:37 PM

stuart1

Cargo Master

Joined: Jun 2003

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From: Somewhere Saskatchewan

Modulator.

Quite often when shift kits are installed the minimum shift points are a tad too minimum.

If turning the screw in the modulator doesn't help much you can try lengthening the pin.
I use a metal coat hanger and it works well.
Measure the old one and make one .060 longer.
Round the ends and give it a try.