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M-20 - question on a couple numbers on it

 
Old 03-14-2019, 10:49 AM
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Railroadman
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Default M-20 - question on a couple numbers on it

I'm not really to the point of needing the transmission but in the course of looking it over, I found a couple numbers which I'm not familiar with.

First is the stamping seen below, by the lower right corner of the side cover.

The second, I neglected to take a pic of, is a small metal tag which was held on by one of the side over bolts. Number embossed on that is 839602.



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Old 03-14-2019, 11:04 AM
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Originally Posted by Railroadman View Post
The second, I neglected to take a pic of, is a small metal tag which was held on by one of the side over bolts. Number embossed on that is 839602.
That's the trans. I.D. tag. It should read 3839602. The first 3 is commonly obscured by the attachment bolt. It indicates that it's a 64 wide ratio Muncie trans. used on 250 & 300 HP Corvettes.
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Old 03-14-2019, 05:02 PM
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And does the stamping in the pic suggest a rebuild at some point?
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Old 03-14-2019, 05:57 PM
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June 18 assembly date
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Old 03-14-2019, 06:20 PM
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Originally Posted by pop23235 View Post
June 18 assembly date
Duh, I should have figured that out. Altho I didn't remember having seen that on other trannys discussed here. Built date on the car itself seems to be June 23rd so that's right on the money.

Thanks !

Now - where to find a good place to have it gone through in NY, PA or eastern OH?
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Old 03-16-2019, 08:07 AM
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I believe the 1 in the circle means 1 shift. Mine has a 2 in a circle built in Jan ‘64
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Old 03-16-2019, 08:51 AM
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Originally Posted by vmaxpwc View Post
I believe the 1 in the circle means 1 shift. Mine has a 2 in a circle built in Jan 64
So day shift, with more bosses around, and guys with more seniority working. June 18, 1964 - that was a Thursday so no Monday blues or Friday "hell-with-it". And late in the year so everybody was (hopefully) well-versed in what they were doing!

I feel better now!

Thanks vmax - I knew I had read something about the number in the circle, but could not recall what it was!
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Old Yesterday, 11:06 AM
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Default Muncie Rebuild Shop in PA

Originally Posted by Railroadman View Post
Duh, I should have figured that out. Altho I didn't remember having seen that on other trannys discussed here. Built date on the car itself seems to be June 23rd so that's right on the money.

Thanks !

Now - where to find a good place to have it gone through in NY, PA or eastern OH?
There is a guy up in Lansdowne PA who specializes in Muncie's and T-10's. Several of us in the Northern Virginia area with C2's and C3's have used him before for Muncie rebuilds and have been very satisfied. We bring our transmissions up to Spring, Fall or Corvette Carlisle and drop them off at his booth and then pick them up at the next convenient event at Carlisle after the completion of the rebuild. The gentleman does good work and his prices are reasonable. PM me for all of his pertinent information if you are interested.

C.J.
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Old Yesterday, 11:15 AM
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Originally Posted by C2Scho View Post
There is a guy up in Lansdowne PA who specializes in Muncie's and T-10's. Several of us in the Northern Virginia area with C2's and C3's have used him before for Muncie rebuilds and have been very satisfied. We bring our transmissions up to Spring, Fall or Corvette Carlisle and drop them off at his booth and then pick them up at the next convenient event at Carlisle after the completion of the rebuild. The gentleman does good work and his prices are reasonable. PM me for all of his pertinent information if you are interested.

C.J.
Ed Hartnett of Lansdowne, Pa.. Lots of parts & experience. (610) 623-9381
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Old Yesterday, 03:04 PM
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Number noted, thanks! I have a few things I need to address first but will get to the trans soon (I hope!)
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Old Yesterday, 07:13 PM
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You can also try Gary Howard @ Gary’s Gearbox. [email protected]. Tel.# 267-424-5838. He is just north of Allentown PA. Many year building and repairing muncies.
Tom
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