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I recently acquired an early build 1965 roadster and was looking at the transmission assembly date. I thought it was a restamp because of the “fly cut” where the assembly date is. Then cruising the forums I saw another one like it. Then I thought to myself that would be a lot of work just for a restamp. You would have to disassemble everything and have the bare case all by itself to make that fly cut. So now I’m thinking it’s a factory thing. Does anyone have any insight on something like this?
Last edited by bbrdstr; Oct 4, 2024 at 11:02 AM.
Reason: typo
dcamick,
The OP has a '65. His date code should have the "P" for Muncie then a two digit month and two digit day followed by either a "D" or "N" (designating the day or night shift). The OP stamp is not from the factory.
dcamick,
The OP has a '65. His date code should have the "P" for Muncie then a two digit month and two digit day followed by either a "D" or "N" (designating the day or night shift). The OP stamp is not from the factory.
Leif,
I totally agree......I was looking at the Alpha Numeric positioning which did not look consistent with other examples that I have seen. AND the re ground casing flange.......I know about that also.....the hard way!!!
This Vin Gang stamping is consistent with what I have seen...This is from my 65. Unfortunately did not picture the Muncie Date Code on the other side of the Muncie.
Leif,
I totally agree......I was looking at the Alpha Numeric positioning which did not look consistent with other examples that I have seen. AND the re ground casing flange.......I know about that also.....the hard way!!!
This Vin Gang stamping is consistent with what I have seen...This is from my 65. Unfortunately did not picture the Muncie Date Code on the other side of the Muncie.
guys
you can agree
but that’s an opinion where the data and corroborated facts show differently
the pop has that date
the vin is unmollested
and I’m telling you that in 1965 specifically there were some of these that were broached and hand stamped in the special build room
That’s all I’m going to go into until I see the casting details of the main case
OP
what is the ratio?
engine?
what is the delivery date to the first owner?
Did you get a Ncrs shipping report?
Last edited by Argentimage; Oct 9, 2024 at 02:11 AM.
It is a fuelie car. Close ratio transmission with 4:56 gears originally. No radio. I will get you more pics of the main case. The delivery date to the first owner is 5-26-65. Strange for an early car. Maybe a dealer demo? Should have the shipping report today or tomorrow. Thank you.
Last edited by bbrdstr; Oct 9, 2024 at 09:16 AM.
Reason: more information
This is what an early 1965 model year "P" number(build date) stamp looks like.
I have about a dozen of these in stock, I have never found any cases with August to Oct early Nov. of 1964(1965model year),
that are not stamped like this.
The only reason I can think of for GM going thru this process, is 1963-64 Muncie's were stamped on side cover flange, a machined surface.
So 1965 model year the "P" number is stamped on the right side of the main case on a rough casting. Then some engineer de-sides it has to be stamped on a machined surface like 1963-64
so the case gets fly cut, and it takes 3-4 months for the engineers to figure out its easier to just stamp the rough casting.
This is what an early 1965 model year "P" number(build date) stamp looks like.
I have about a dozen of these in stock, I have never found any cases with August to Oct early Nov. of 1964(1965model year),
that are not stamped like this.
The only reason I can think of for GM going thru this process, is 1963-64 Muncie's were stamped on side cover flange, a machined surface.
So 1965 model year the "P" number is stamped on the right side of the main case on a rough casting. Then some engineer de-sides it has to be stamped on a machined surface like 1963-64
so the case gets fly cut, and it takes 3-4 months for the engineers to figure out its easier to just stamp the rough casting.
Hope this helps... Eric
the engineer didn’t decide anything
there were regulatory and manufacturing reasons
op hasn’t shared couple details to expand discussion
I haven’t replied because I was waiting for my NCRS report. I just got that report about an hour ago in the mail. NCRS says that the production date was 11/13/1964. The protectoplate does not have a delivery date on it, but does list it as an L, meaning a November car. I think that the delivery date of 5/26/65 is to the second owner.
Muncie assembly date
