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#1
04-06-2026, 05:56 PM
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ID Muncie trans, please..Pontiac people ??
I have a "1325" Muncie I am going to sell with what appears to be a partial vin stamp and a very light stamping that may be the car assembly date ? The vin is J264103. I'm guessing it is a Janesville build and the 2 a Pontiac car ? Any guess as to which year/model car for a 1964-65 transmission ?
There is also a stamp near the side cover with what appears to be F0406...April 6th ? OK, looking at that stamp enlarged, it appears it could be a P, so inline with Muncie date codes... Thanks for any help, I don't want to misrepresent it.
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Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 15k miles 
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#2
04-06-2026, 07:17 PM
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Looks to be a '64 with the rounded upper bolt boss. Janesville passenger car, Chevrolet. The 2 in the partial vin means they have produced more than 100,000 cars. The passenger side speedo started in late '65 model year though.
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| The Following User Says Thank You to DAVE H For This Useful Post: | ||
Too Many Projects (04-06-2026) | ||
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#3
04-06-2026, 10:54 PM
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OK, anyone have production numbers for Janesville in '64-65 ?
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Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 15k miles
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#5
04-07-2026, 12:04 PM
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I'm fairly certain the drain plug was added later. I'm not aware of any 1325 cases with that from the factory and the fact that it doesn't seat near as deep as the fill plug and with liberal amounts of blue rtv indicate a later addition. Someone has been in this trans but 3rd and fourth look a little rough for wear. No rings on the 10 spline input, quite certain it's an M20.
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Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 15k miles
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#6
04-07-2026, 12:45 PM
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That's a 64 M20 from a Janesville fullsize car, probaly Impala. Partial vin fits in for a end of 3rd week April build
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381 and counting in the 67-69 Impala SS427 registry
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| The Following 2 Users Say Thank You to TAR6569 For This Useful Post: | ||
fsc66 (04-08-2026), Too Many Projects (04-07-2026) | ||
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#7
04-07-2026, 01:29 PM
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Excellent, thank you !!
Assuming the tail housing was changed at some time. Can fantasize it was behind a 425/409...  Be like the people selling 1970 Chevelle parts...every part came from an LS6...
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Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 15k miles
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| The Following User Says Thank You to Too Many Projects For This Useful Post: | ||
L78_Nova (04-07-2026) | ||
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#8
04-07-2026, 03:18 PM
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May want to pull that bottom plug and offer it for sale.
See them occasionally on epay and they are not cheap.
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| The Following User Says Thank You to daveg For This Useful Post: | ||
Too Many Projects (04-07-2026) | ||
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#9
04-07-2026, 05:10 PM
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I will be removing it, but putting it in one of my 3 Muncies...
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Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 15k miles
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#10
04-07-2026, 06:14 PM
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LISLE magnetic drain plugs are not that rare,
Yours and hers are an exception to that. No idea where else this exact one is used but it is common in the bottom hole of 1969 M22's.
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