The Supercar Registry

The Supercar Registry (https://www.yenko.net/forum/index.php)
-   Supercar/Musclecar Discussion (https://www.yenko.net/forum/forumdisplay.php?f=79)
-   -   MUNCIE METAL TAGS (https://www.yenko.net/forum/showthread.php?t=98292)

427king 04-13-2008 06:32 AM

MUNCIE METAL TAGS
 
Can anyone tell me where i can find nfo for decoding metal 4 speed tags for muncie m20 21 and 22. I have 40 or 50 of those metal tags from mostly 69 and 1970 and would like to decipher some of them.

Lynn 04-13-2008 06:58 AM

Re: MUNCIE METAL TAGS
 
3950356 is for RPO M20 with L48, L34, L35, LM1
3946797 is for RPO M20 with Z28 & L78
3946798 is for RPO M21 with Z28 and L78
3950318 is for RPO m22 with Z28 and L78

I believe this info is according to the AIM for 1969 models.

Lynn

427king 04-13-2008 06:59 AM

Re: MUNCIE METAL TAGS
 
Thanks ...Any info on decoding the 2 letter codes [ie WO for 70 chevelle m22 etc that are at the end of the part #] ?

Lynn 04-13-2008 07:06 AM

Re: MUNCIE METAL TAGS
 
Don't know about 70's, but I bet someone here does.

mockingbird812 04-13-2008 07:08 AM

Re: MUNCIE METAL TAGS
 
Mr70 knows this stuff. Hey Rick! https://www.yenko.net/ubbthreads/imag...mlins/wink.gif

427king 04-13-2008 07:11 AM

Re: MUNCIE METAL TAGS
 
actually im looking for that 2 letter code and part #s info for 69 as well as 70...

Mr70 04-13-2008 07:17 AM

Re: MUNCIE METAL TAG ID
 
Lots of people contributed,but credit goes to Chuck Hanson for publishing this all in last months Chevelle World.Box #28 on the Buildsheet will reflect the 2 letter code as well.
<u>Muncie ID Tags</u>
1964 M20 3841435
1965 M20 3857577
1965 M20 3857578 Z16
1966 M20 3870357 L-34 L-35
1966 M20 3890534 L-78
1966 M21 3877459 ALL
1966 M22 3879993 L-78
1967 M20 3870357 L-34 L-35 L-79
1967 M21 3877459 ALL
1967 M22 3879993 L-78
1968 M20 3915079 L-34 L-36 L-78 L-79
1968 M21 3915085 L-34 L-36 L-78 L-79
1968 M22 3925626 L-78
1969 M20 3950301 L-48 L-35
1969 M20 3946767 L-34 L-78
1969 M21 3946798 ALL
1969 M22 3950318 L-78 COPO L72
1970 M20 3952659 WB
1970 M21 3968012 (disc.3-11-70)
1970 M21 3968011 WL
1970 M22 3978766 WO
1971 M20 3974484 WN
1971 M22 3978766 WO
1972 M20 3974484 WN
1972 M22 6271517 WJ


427king 04-13-2008 07:25 AM

Re: MUNCIE METAL TAG ID
 
Thanks.

crash 04-13-2008 09:06 PM

Re: MUNCIE METAL TAG ID
 
In the past 6 months or so I've had several 1969 Chevelle people asking me for tag #3946767 for an L-78 application... I don't have this tag and have never seen one... If you go to Camaro assembly manual the tag for L-78 is 3946797... My question is does anyone have a 3946767 tag, or have they seen one??? Or my thought is that it's a typo and the 9 got flipped in the printing process to become a 6... These tags are usually in familyies of tag numbers...
3946797
3946798
3946799
I have never seen any tag number either side of 3946767...
I'm open to any and all input... Crash

Kurt S 04-14-2008 01:04 AM

Re: MUNCIE METAL TAG ID
 
Hate to say, but Chuck's list has several errors in it. Also, note that Chevelle and Camaro shared some applications, but some were unique.

Crash,
The 767 # is one of the errors.

P.J. 04-14-2008 05:32 PM

Re: MUNCIE METAL TAG ID
 
Kurt
Please correct the errors so that we can all get it straight
thanks
PJ

Kurt S 04-15-2008 08:22 AM

Re: MUNCIE METAL TAG ID
 
I'll try, but it's not happening soon....
Not an easy topic and I have enough pet projects.

Mr70 04-15-2008 05:47 PM

Re: MUNCIE METAL TAG ID
 
I agree with the 6767 issue,all Chevrolet materials I've seen report it should be a 9.
I have two actual 9 tags here as well.
I can not confirm if this typo was made by the author of the list or the source he got it from,but it does look like an error.

Stefano 04-16-2008 05:12 AM

Re: MUNCIE METAL TAG ID
 
[ QUOTE ]
Lots of people contributed,but credit goes to Chuck Hanson for publishing this all in last months Chevelle World.Box #28 on the Buildsheet will reflect the 2 letter code as well.
<u>Muncie ID Tags</u>

1964 M20 3841435
1965 M20 3857577
1965 M20 3857578 Z16
1966 M20 3870357 L-34 L-35
1966 M20 3890534 L-78
1966 M21 3877459 ALL
1966 M22 3879993 L-78
1967 M20 3870357 L-34 L-35 L-79
1967 M21 3877459 ALL
1967 M22 3879993 L-78
1968 M20 3915079 L-34 L-36 L-78 L-79
1968 M21 3915085 L-34 L-36 L-78 L-79
1968 M22 3925626 L-78
1969 M20 3950301 L-48 L-35
1969 M20 3946767 L-34 L-78
1969 M21 3946798 ALL
1969 M22 3950318 L-78 COPO L72
1970 M20 3952659 WB
1970 M21 3968012 (disc.3-11-70)
1970 M21 3968011 WL
1970 M22 3978766 WO
1971 M20 3974484 WN
1971 M22 3978766 WO
1972 M20 3974484 WN
1972 M22 6271517 WJ


[/ QUOTE ]

I have a low mileage, very original 1966 SS Impala 327/275 hp 4 speed car, built the third week in October which has a 3870372 tag. Can anyone confim the application?

bkhpah 04-16-2008 06:00 AM

Re: MUNCIE METAL TAG ID
 
1969 M22 tag from Ed Ernsts COPO..BKH
http://i61.photobucket.com/albums/h5...h/DSC04299.jpg

Mr70 04-17-2008 01:33 AM

Re: MUNCIE METAL TAG ID
 
Stefano
Take this with a grain of salt as my records are not as complete as others.
I'm finding the Muncie M-20 #3870372 was installed behind the 1966-67 396cid &amp; 427cid vehicles only.
It also shows when the 1966 Passenger series got a 327cid,it got Muncie M-20 #3884603 (Not used behind L-79).
A friend of mine who owns a 1967 327cid Passenger series has an M-20 w/#3916108 tag on it.
I'm sure crash could help narrow this down some more.

westonz28rs 05-02-2008 07:13 PM

Re: MUNCIE METAL TAG ID
 
How about this tag number 3964502? Was in the bucket that held a CE stamped muncie m 20 all there but in many pieces. Thank you for the information.

Mr70 05-02-2008 07:34 PM

Re: MUNCIE METAL TAG ID
 
That's a Muncie 4spd. 2:52:1 ratio used originally in:
1968 Passenger series w/396cid &amp; 427cid.
1968 Camaro,Chevy II w/327cid &amp; 350cic &amp; 396cid.

And recommended replacement in:
1967 Camaro 350cid &amp; 396cid.
1966-68 Chevelle,Camaro 327cid.
1965-67 Passenger series.
1966 Chevy II.
1965 Chevelle,Chevy II.


Chevy2 05-02-2008 10:18 PM

Re: MUNCIE METAL TAG ID
 
Well, while were at it whats this # 3915077

Mr70 05-04-2008 06:17 PM

Re: MUNCIE METAL TAG ID
 
That's a Muncie 4spd. wide ratio 2:52:1 as well.
Used originally in:
*1968 Passenger series w/8.15 X 15 tires w/3:55 axle AND when 396cid or 427cid. equipped.
*1968 Corvette w/o Posi or 3:55 axle.

And Recommended replacement in:
*1965-67 Passenger &amp; Corvettes when NOT close ratio equipped.
*1965 Corvette w/o Spcl. Hi-Perf or Fi.

It was soon superceded in 1970 by Muncie #3964507 for same applications.

MR-427 08-11-2009 03:03 AM

Re: MUNCIE METAL TAG ID
 
I also have a 3915077 and 3867268..I havent a clue what either is..I believe the 3867268 tag was from a 1968 m-21

Mr.Nickey Nova 08-12-2009 04:07 AM

Re: MUNCIE METAL TAG ID
 
[ QUOTE ]
Lots of people contributed,but credit goes to Chuck Hanson for publishing this all in last months Chevelle World.Box #28 on the Buildsheet will reflect the 2 letter code as well.
<u>Muncie ID Tags</u>
1964 M20 3841435
1965 M20 3857577
1965 M20 3857578 Z16
1966 M20 3870357 L-34 L-35
1966 M20 3890534 L-78
1966 M21 3877459 ALL
1966 M22 3879993 L-78
1967 M20 3870357 L-34 L-35 L-79
1967 M21 3877459 ALL
1967 M22 3879993 L-78
1968 M20 3915079 L-34 L-36 L-78 L-79
1968 M21 3915085 L-34 L-36 L-78 L-79
1968 M22 3925626 L-78
1969 M20 3950301 L-48 L-35
1969 M20 3946767 L-34 L-78
1969 M21 3946798 ALL
1969 M22 3950318 L-78 COPO L72
1970 M20 3952659 WB
1970 M21 3968012 (disc.3-11-70)
1970 M21 3968011 WL
1970 M22 3978766 WO
1971 M20 3974484 WN
1971 M22 3978766 WO
1972 M20 3974484 WN
1972 M22 6271517 WJ


[/ QUOTE ]
Rick,I take it that these are for Chevelles only.I have a 3968011WL on my Nova that is a M21.Could this number been used on other cars also in 1970.

Mr70 08-12-2009 06:19 AM

Re: MUNCIE METAL TAG ID
 
Although printed in a Chevelle themed publication,those are not Chevelle specific.
Yes,other vehicles shared them.

COPO CARTEL 08-12-2009 06:24 AM

Re: MUNCIE METAL TAG ID
 
For what it's worth if anyone has a 3950318 I would be interested in purchasing one. Thanks Doug

jamesholden 02-09-2010 09:10 AM

Re: MUNCIE METAL TAG ID
 
have a 3946797 tag. original. M20
not typo

james
530.941.4399

Lynn 02-09-2010 04:56 PM

Re: MUNCIE METAL TAG ID
 
[ QUOTE ]
have a 3946797 tag. original. M20
not typo

james
530.941.4399

[/ QUOTE ]

That is what my M-20 has. I beleive that is correct for 69 Camaro with Z/28 or L78.

crash 02-09-2010 08:30 PM

Re: MUNCIE METAL TAG ID
 
Tag Number 3946767 in the list from the Chevelle report is wrong, should be 3946797... Crash

Mr70 02-09-2010 09:59 PM

Re: MUNCIE METAL TAG ID
 
I do believe you're right,but it's in A.C.E.S. Chevelle World magazine.

luv2sixty9 02-23-2010 10:55 PM

Re: MUNCIE METAL TAG ID
 
The 3946797 is for the 1969 M20 Trans. I'm looking for 3946798 if anyone has an extra.

Lynn 02-24-2010 05:43 AM

Re: MUNCIE METAL TAG ID
 
From the assy manual for 1969 Camaro (don't know about Chevelle or 67-68 Camaro)

3950356 is for RPO M20 with L48, L34, L35, LM1
3946797 is for RPO M20 with Z28 &amp; L78
3950316 is for RPO M21 with L34
3946798 is for RPO M21 with Z28 and L78
3950318 is for RPO M22 with Z28 and L78

Evidently, from this and from the RPO spreadsheet file in pdf available at camros.org, you could not order a close ratio (M21 or M22) unless you had L34 (M21 only) or Z/28 or L78.

Now, for another question: Why is there a different tag number for the M20 behind a Z/28 or L78 as opposed to the one behind an L48 engine? They would be identical outside dimensions. The Z and the L48 would have identical shifters and brackets. Was there anything internally different between a Z/28 M20 and the regular small block SS M20? There had to be something different about these transmissions to warrant different tags. Maybe the standard rear gear ratio?

crash 02-24-2010 05:54 AM

Re: MUNCIE METAL TAG ID
 
Different speedo gears on the main shaft... Crash

hubleyman 02-26-2010 04:49 AM

Re: MUNCIE METAL TAG ID
 
1 Attachment(s)
So after reading this topic of discussion, I decide to go out in the garage and check out the tag for my 69 Z/28 and see if it has that 3946797 tag that is being discussed...

Mind you, this Muncie is the matching number gearbox for my car but has been sitting under a workbench for 15 + years (my buddy who used to own the car broke one of the mounting ears). I've never bothered to look at it other than to make sure the VIN was correct....

Low and behold, here's a pic of what I found....

Charlie

Lynn 02-26-2010 04:54 AM

Re: MUNCIE METAL TAG ID
 
Nice! You didn't even know you had a rock crusher? Can you post a pic of the assembly date code?

hubleyman 02-26-2010 05:10 AM

Re: MUNCIE METAL TAG ID
 
1 Attachment(s)
Oh sure, make me get my hands dirty.......

Well, with a little help from some carb cleaner, here you go.......

FYI, my car is a 10A Norwood built Camaro so I think that is before they started stamping the extra trany code letter on the case??? Probably why I never bothered to open the side cover and check it out? Looks like I have a new task to do this weekend....

Charley Lillard 02-26-2010 05:46 AM

Re: MUNCIE METAL TAG ID
 
Or save yourself the time and effort and give me the Z28..

hubleyman 02-26-2010 05:52 AM

Re: MUNCIE METAL TAG ID
 
1 Attachment(s)
I'd be happy to Charley.... but it was dirty last time I had it out it wouldn't go to well with the others in your Harem....

Charley Lillard 02-26-2010 06:20 AM

Re: MUNCIE METAL TAG ID
 
Perfect..and it is already on the trailer..Your only about 70 miles away. You could have it here saturday.

acicoria1 02-18-2013 09:18 PM

Re: MUNCIE METAL TAG ID
 
I have one I have been trying badly to decode: M20 with an assembly code of P2C29A. Has the 26 spline in and 32 out, drain plug, case #3925661, tail #3978764, and side cover #3952648. Everything seems to indicate it came in an 1972 BB Chevelle. The metal tag on the side cover is: 6271516WD. I am confident that it is correct for the trans. I have had it since 1980 and I know it has not been touched and the metal tag has stayed intact. Would love to know how to decode this metal tag. Any help would be appreciated!
PS. tried to upload a pic of it but do not know how. Clicked on &quot;enter an image&quot; but it's asking for a ULR. Does that mean I have to put the pic on a page to add? -Technology passes us all by sooner or later...

Igosplut 02-18-2013 11:51 PM

Re: MUNCIE METAL TAG ID
 
I have a dog food can full of these, perhaps I should check them...

Fast67VelleN2O 02-19-2013 12:43 AM

Re: MUNCIE METAL TAG ID
 
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: acicoria1</div><div class="ubbcode-body">I have one I have been trying badly to decode: M20 with an assembly code of P2C29A. Has the 26 spline in and 32 out, drain plug, case #3925661, tail #3978764, and side cover #3952648. Everything seems to indicate it came in an 1972 BB Chevelle. The metal tag on the side cover is: 6271516WD. I am confident that it is correct for the trans. I have had it since 1980 and I know it has not been touched and the metal tag has stayed intact. Would love to know how to decode this metal tag. Any help would be appreciated!
PS. tried to upload a pic of it but do not know how. Clicked on &quot;enter an image&quot; but it's asking for a ULR. Does that mean I have to put the pic on a page to add? -Technology passes us all by sooner or later... </div></div>

What is the vin stamped next to the assembly date?


All times are GMT. The time now is 02:31 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.


O Garage vBulletin Plugins by Drive Thru Online, Inc.