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#1
09-30-2008, 08:31 AM
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Trans decode help
I got this off an M22 reads P1PO3C. Nbr on other side of case 9976171 and the metal tag nbr 978766 WO
I know it's a M22, but what else does it decode out as? Thanks, Schonye  
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#2
09-30-2008, 08:57 AM
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Re: Trans decode help
P1P03C...
P = Muncie 4 speed, alum case 1 = 1971 model year P = September assembly month (in this case, September 1970) 03 = day of assembly (9/3/1970) C = M22 Is that 9976171 number cast or stamped? If it's a main case casting number, I have no idea what that's from, and it sure blows the P1P03C number out of the water. Can't help you on the tag number.
__________________
Bill Pritchard 73 Camaro RS Z28, L82, M20, C60
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#4
09-30-2008, 06:10 PM
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Re: Trans decode help
The 9976171 is stamped. I felt that was the Vin nbr. The rest , as you decoded was what I thought, but wasn't sure.I didn't see a provision for a TCS plug in. Shouldn't there be on on a 71 trans?
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#5
10-01-2008, 02:56 AM
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Re: Trans decode help
 That number is not consistent with any type of CON VIN from a 1971 model GM product. The CON VIN format should be N1Lnnnnnn, whereN = a number designating the GM division of the car (Chevrolet would be 1, and I believe Pontiac is 2) 1 stands for model year 1971 L = a letter designating the vehicle assembly plant nnnnnn = the last six digits of the sequential VIN of the car Colvin's book makes no mention of anything regarding the TCS switch provision
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#6
10-01-2008, 07:40 AM
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Re: Trans decode help
The M22 that I had in my deuce had a provision for a TCS plug in. I'll have to look again, but I don't remember seeing it on this one. I agree those numbers I gave really don't appear to be a sequential vin number, but it's the only other stamping in the main case.
A friend of mine is wanting to sell it, but he wanted to be able to tell a prospective buyer what it came out of. I'm not sure were going to find out.
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#8
10-03-2008, 08:01 AM
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Re: Trans decode help
Crash, it does have the TSC provision. I missed it the 1st time. The tag reads 978766 WO.Not sure the tag is original to the trans.
9352648 side cover 3978764 GM tail 3925661 case PIPO3C STAMP 21200268 stamp on other side Could be a case of mixed pieces.
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