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Old 04-11-2026, 01:00 PM
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Default 1968 m21

I've always known the M21 in my 1968 Z/28 wasn't the original. It turns out to be from a 1968 Oldsmobile built in Lordstown. The partial vin is had to read. I know we have an orphan spot here, but I was wondering if there is a specific Olds site for the same. If I don't find the car, the transmission is going back into my car. Thank you, Joe
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Old Yesterday, 12:36 AM
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Lordstown built Fullsize Chevy and Pontiac Firebirds. Can you post the vin and date code?
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Old Yesterday, 11:24 AM
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Assm number is P8R17. Partial VIN is 38V105967....Joe
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Old Yesterday, 04:27 PM
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No question that "3" is an Oldsmobile.

The "V" is perplexing. I cannot find a Plant code for V.

Sure it isn't an "M" stamped poorly? That would be for Lansing, MI. 442s and even H/O were built there in 1968.
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Old Yesterday, 05:07 PM
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Quote:
Originally Posted by Lynn View Post
No question that "3" is an Oldsmobile.

The "V" is perplexing. I cannot find a Plant code for V.

Sure it isn't an "M" stamped poorly? That would be for Lansing, MI. 442s and even H/O were built there in 1968.
I looked again & I honestly can't confirm what the letter that is. It's could be a "M"....Joe
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1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E
1970 'cuda Moulin Rouge, 440-6, 4 speed

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Old Yesterday, 09:51 PM
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Take a good close up pic from a few different angles, Joe. I've seen a picture highlight shadows and reliefs in situations like that and make it more visible.
That transmission I asked about was like that. I thought it had an F until I posted the pic on here and I could see it was a partial P.
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Old Yesterday, 11:23 PM
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I'm thinking it might be a "Y" for the Wilmington plant. More than likely, a Cutlass.
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Old Yesterday, 11:25 PM
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Quote:
Originally Posted by Too Many Projects View Post
Take a good close up pic from a few different angles, Joe. I've seen a picture highlight shadows and reliefs in situations like that and make it more visible.
That transmission I asked about was like that. I thought it had an F until I posted the pic on here and I could see it was a partial P.
That's one of my tricks The trans is out & sitting on the floor. I've shined the light side to side to create shadows & top to bottom to do the same. It's been scratched in that area & is no longer 100% legible. I even took the shifter off since the VIN is on that side. I guess I was thinking that with knowing it's Olds & the last 6 might lead to an entire VIN. It most likely will return to my car once I reseal it....Joe
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1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E
1970 'cuda Moulin Rouge, 440-6, 4 speed
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Old Today, 01:36 AM
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If it's a good trans and you're happy with, keep it until you find something closer to your build.
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