Author Topic: 8N477196 M22  (Read 2376 times)

Nikke

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8N477196 M22
« on: August 03, 2016, 12:52:44 AM »
I have 8N477196 M22 Gearbox small c
Nikke

Nikke

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Re: 8N477196 M22
« Reply #1 on: August 03, 2016, 12:57:09 AM »
Nikke

bertfam

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Re: 8N477196 M22
« Reply #2 on: August 03, 2016, 01:06:10 AM »
Nikke, can you post a picture of the input shaft please? The letter C doesn't mean M22 in 1968.

Ed
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Nikke

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Re: 8N477196 M22
« Reply #3 on: August 03, 2016, 01:36:21 AM »
I have had this Gearbox for 10 years and I know its a M22.
We had this discusion at Team Camaro at the time.
I had to open the gearbox to convince them.
They say the small c is a Inspection stamp.
Nikke

bertfam

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Re: 8N477196 M22
« Reply #4 on: August 03, 2016, 01:39:26 AM »
That's what I used to think too, but no, it's not an inspection stamp. But we're not sure WHAT it was used for! HERE'S more info. (Kurt, any new revelations on the square c for 1968 and the other stamps for 1967?)

Ed
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Nikke

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Re: 8N477196 M22
« Reply #5 on: August 03, 2016, 02:13:45 AM »
Okay, I didnt know that you had discussed this before.
The gearbox is in the car, but I'm going to get the engine out in the future and then i can take some pictures.
I dont know if its original M22.
I have another 68 Muncie in the garage.
I can look at it tomorrow.
And the 67 Muncie.
Nikke

bcmiller

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Re: 8N477196 M22
« Reply #6 on: August 03, 2016, 03:20:34 AM »
I still think the small squared off "c" is an inspection mark.
Bryon / 1968 Camaro SS 396 - now 468 ci, M21, 12 bolt
Looking for 68 Camaro with body number NOR 181016

bertfam

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Re: 8N477196 M22
« Reply #7 on: August 03, 2016, 01:23:08 PM »
Bryon, as Kurt eluded, that symbol was included in the date code gang stamp, which was used long before the transmission was inspected. The inspection stamp is located on top of the trans and was a different symbol (see attached for a few examples - 2 inside a circle and 3 inside a square).

So whatever it was, it was done by the person that built the transmission and stamped the date code. It may be something to do with the person that assembled the transmission (in other words, some kind of tracking information on who actually built it), but if that were true, there would be other symbols and we've not seen anything on 68 transmission except the squared off C, a funky looking M (?) and no symbol at all. It's a real mystery since I would assume there was more than 3 people building Muncie transmissions!

Ed
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bcmiller

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Re: 8N477196 M22
« Reply #8 on: August 03, 2016, 04:53:54 PM »
Ed I will send you a message. Honestly I don't know what it is for sure. Just my suspicion. I have examples back to 1964 or 1965 with inspection marks as part of the date code. I think somebody got smart and didn't want to stamp things twice. I don't remember if some of these had other inspection stamps or not.
Bryon / 1968 Camaro SS 396 - now 468 ci, M21, 12 bolt
Looking for 68 Camaro with body number NOR 181016

Nikke

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Re: 8N477196 M22
« Reply #9 on: August 03, 2016, 07:42:01 PM »
Nikke

69Z28-RS

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Re: 8N477196 M22
« Reply #10 on: August 03, 2016, 08:00:59 PM »
IIRC, it is only 68 Muncies that have the little 'c' after the code; I had one but sold it; it was an M21.
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
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bcmiller

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Re: 8N477196 M22
« Reply #11 on: August 03, 2016, 08:39:09 PM »
Gary, that is correct.  At least from what I have seen.  But there are other "marks" that are in other years with the stamped assembly date. 
Bryon / 1968 Camaro SS 396 - now 468 ci, M21, 12 bolt
Looking for 68 Camaro with body number NOR 181016

bertfam

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Re: 8N477196 M22
« Reply #12 on: August 03, 2016, 08:41:18 PM »
Here's that funky M (if you can call it that) that I was referring to. Note that this one is on a CT transmission.

Ed
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bertfam

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Re: 8N477196 M22
« Reply #13 on: August 03, 2016, 08:46:02 PM »
And here's the partial 7 on a 1967 Muncie.

Ed
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cook_dw

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Re: 8N477196 M22
« Reply #14 on: August 04, 2016, 11:43:14 AM »
Could it have simply been a place holder in the gang stamp?
Darrell Cook

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