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C3 short shift linkage!

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Old Aug 10, 2019 | 01:37 PM
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Default C3 short shift linkage!

Hello there,
I've read in the attached document under "Performance Finer Points" on the bottom of the attached document, that you can use original GM part 1965 - 1966 Chevelle shift arm (standart GM part number) that attaches directly to Muncie 4 Speed case , to replace original C3 one, and have a short shift at your Corvette C3 with original shifter handle not hurst. Has anybody a clue what that part number for the 1965 - 1966 Chevelle shift arm is? It is described as "shift arm" in the attached document. A short shift with original to C3 shifter stick would be great! The Transmission on my car is the original standard to the car 1971 Muncie 4 Speed...

I would apreciate any Info about this Special 1965/66 Chevelle part!

Thank You!!
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File Type: pdf
C3 Improovements.pdf (2.20 MB, 254 views)

Last edited by Alex66; Aug 10, 2019 at 01:46 PM.
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Old Aug 10, 2019 | 02:33 PM
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My '70 came with the two hole shift levers, not sure what years had them, all I had to do was move the linkage to the lower holes.
So, there should be lots of Corvette levers still around.

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Old Aug 10, 2019 | 06:48 PM
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Originally Posted by Barry's70LT1
My '70 came with the two hole shift levers, not sure what years had them, all I had to do was move the linkage to the lower holes.
So, there should be lots of Corvette levers still around.

My 75 came with two holes too! I think all c3 factory shift linkage had them. It was an easy change and makes a big difference!
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Old Aug 10, 2019 | 09:08 PM
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Originally Posted by Alex66
Hello there,
I've read in the attached document under "Performance Finer Points" on the bottom of the attached document, that you can use original GM part 1965 - 1966 Chevelle shift arm (standart GM part number) that attaches directly to Muncie 4 Speed case , to replace original C3 one, and have a short shift at your Corvette C3 with original shifter handle not hurst. Has anybody a clue what that part number for the 1965 - 1966 Chevelle shift arm is? It is described as "shift arm" in the attached document. A short shift with original to C3 shifter stick would be great! The Transmission on my car is the original standard to the car 1971 Muncie 4 Speed...

I would apreciate any Info about this Special 1965/66 Chevelle part!

Thank You!!
As stated above; if you have the original 71 manual transmission/shifter then there are two sets of holes in the shift levers - one for normal/long throw and a second set for short.
Simply move the rods into the holes closer to the pivot point on the forward shift levers and you're good to go.
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Old Aug 10, 2019 | 10:11 PM
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Why not get a Hurst shifter? Much better unit.
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Old Aug 11, 2019 | 07:08 AM
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Originally Posted by 7t9l82
Why not get a Hurst shifter? Much better unit.
not necessarily .....and the shift lever hole itself is a 1/4 to 1/2 inch further out than the short shift muncie hole. If you rebuild the muncie shifter and set it up properly it is just as quick and smooth as the hurst and a shorter throw. I had the hurst in mine and rebuilt the muncie, and like it much better. The advantage the hurst has is the spring load that pushes it toward the 3-4 path when in neutral. But it really sucks trying to get it in the reverse path. It a much harder slap to get it into the reverse path which is by design, their version of a reverse lockout.
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Old Aug 11, 2019 | 08:04 AM
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Thank You to everybody that gave their reply to my question so far! I apreciate all the info. I just wonder, if all C3's with a Muncie have the "two hole" option in the lever, how come in the attached C3 improovement doc. it is especially refered to the 1965/66 Chevelle lever? Did you gents look at this?
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Old Aug 11, 2019 | 08:27 AM
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Originally Posted by Barry's70LT1
My '70 came with the two hole shift levers, not sure what years had them, all I had to do was move the linkage to the lower holes.
So, there should be lots of Corvette levers still around.

Here is a picture how the shift linkage is currently set up, it looks like that the linkage is allready at the closest mounting point towards the lever...
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Old Aug 11, 2019 | 02:29 PM
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Originally Posted by Alex66
Thank You to everybody that gave their reply to my question so far! I apreciate all the info. I just wonder, if all C3's with a Muncie have the "two hole" option in the lever, how come in the attached C3 improovement doc. it is especially refered to the 1965/66 Chevelle lever? Did you gents look at this?
Looked at the 34 year old publication.
So he spent one entire sentence describing this improvement out of +30 pages of ideas - sad.
No idea why he neglected to point out which years already came with the two hole option.
As for yours, yes from the photo it appears that you are already in the short shift holes.
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Old Aug 12, 2019 | 07:30 AM
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Here's a list of articles: http://corvettefaq.com/c3/
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Old Aug 12, 2019 | 10:48 AM
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If you read the article carefully from John Greenwood, He talks about doing two things.1. Moving the mounting point of the shifter itself and 2 after it is moved, you may use the shorter shifter arms from the Chevelle. As everyone has stated, its easier just to move the existing arms to the lower mounting point. If you do that you may have to do some minor adjustment to the length of the arms and recenter the shifter. If your transmission does not have the two mounting holes you can get them from most Corvette parts supplier ( But pretty sure that it does ).
I changed my shifter to a Hurst a while back and DID change the shift levers to the Chevelle ones. They do shorted the throw just a bit. However, I can't say just how much. I road race the car and this is why I did it. I got the parts directly from Hurst and it takes a bit of research to get the right ones.

Last edited by gg521; Aug 12, 2019 at 12:25 PM.
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Old Aug 13, 2019 | 07:38 PM
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Long shifters ... among the best and priced accordingly

http://www.gforcetransmissions.com/shifter_4speeds.asp
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