Calling all Muncie experts .
I was looking at my 4 speed from 65 396 # 17346 Built 5/12/65 . Heres my questions . The 5th edition judging manual says the main case should be 3851312 and the side cover 3831707 . The last time my car was driven was 1973 It was parked until I bought it ,. It has 31,000 miles and was a drag racer its first 3 years .I bought it in 1980 . My trans. main case casting number is 3885101 with a part number of 3088336 and a date of P01002. . My tail shaft is 3857584 and my side cover is 3884685 with studs not bolts . It has one groove on the input shaft , no drain plug and does not have M22 gears . It has my serial number stamped on the side where it should be and is stamped 17346 . Does anyone else have a 65 like this ? I know its the original trans .What do I have ?
-
-
Re: Calling all Muncie experts .
Bill-----
I assume you mean your main case casting number is 3885010 and not 3885101. In general, that casting number came into use for the 1966 model year. However, I could see where a late 1965 could also have used it, regardless of what the JG recognizes. If so, though, I expect that your car was among the first ever built to use the 3885010. The 3885010 main case also probably means that your transmission uses the 1" cluster gear shaft like 1966+ Muncies and probably also other 1966+ Muncie internal parts that were different from 63-65.
Your extension housing would be correct for either 1965 or 1966-70. Your side cover would be consistent with a 1966 Muncie and, as I mentioned, could also have been used on a late 1965.
The '3088336' is not a part number but a patent number. Your date code of P01002 "does not compute". You must be reading it incorrectly or it's a factory erroneous stamping.In Appreciation of John Hinckley -
Re: Calling all Muncie experts .
Thanks Joe I did screw up the casting number , but the date code is correct I have looked on line It does not match anything I have found .
Does anybody know what the 8 is before the vin # DSCN1524.jpgDSCN1531.jpgDSCN1526.jpgComment
-
Re: Calling all Muncie experts .
Bill-----
This does not look like a factory-stamped VIN derivative, at all. This looks like it was stamped with individual stamps and totally unlike the factory gang stamped method typically used.
The transmission date code still "does not compute". I've never seen a code like this and no matter how it would decode, I can't see how you'd ever get a 1965 date out of this series of numbers.
One more thing: when I postulated that this 3885010 main case Muncie could have been used for later 1965, I was assuming that the production code and VIN derivative were unquestionably legit. However, I'm much less sure now about the production code and VIN derivative. If you combine this uncertainty with the fact that this transmission case part number was not supposed to have been used for 1965, I'd have to say that whether or not any 3885010 transmissions were used for 1965 could not be substantiated by this example.In Appreciation of John HinckleyComment
-
Re: Calling all Muncie experts .
Bill -- couple of points: agree with Joe that this cannot be the original for VIN 17346, mainly because the Muncie IN plant was still producing cast 3851325 transmissions until the first week of August, for late production passenger cars. So that even rules out a late '65 Corvette with a ...010. Pic below is of the VIN stamp of the 2nd-to-last Corvette (gang stamped) S123563.
Here's my guess at what might have happened in your case (no pun intended). Trans blew up (who'd a thunk; in a drag car ???
) replaced in late '65 (see para below) with an early 010 over-the-counter trans. The swapper (correctly; no hanky panky --- NCRS didn't exist then) thought it would be a good idea to stamp the VIN derivative in the new unit for anti-theft reasons. Unfortunately, he/she mis-read the original stamping, and thought the "S" was an "8" [you can see how this might have happened by the big picture]. Then, they also dropped one of the "1"s.
I've seen pictures of at least 4 or 5 with the gang-stamped production date format that you show. I include one thumbnail below. So this is real Muncie assembly, and the error must have been corrected within a few days. This is from an early Kansas City Chevelle 6K104349, which would have been produced (about) the first week of Sept '65.
I've also seen pictures of many Muncies with VIN derivative characters individually stamped, at all weird angles, in passenger cars; can't locate the pics right now.
Comment
-
Re: Calling all Muncie experts .
If you search back a few years, the '0' in P01002 is the known date code until 10-14 when they realized the had an extra 0 in the stamp. I have many examples of that and the vin stamp is typical of non Corvette stamps, so as the guys have said before, blown main case and changed for a part from passenger car.
This happened quite frequently, that main case was not very strong and changes would be noted in 68 and later versions.Comment
-
Re: Calling all Muncie experts .
Ronald are you saying the P01002 is the 1st month 2nd day or the 10th month 2nd day . The original owner did use a 427 for a while until he decided the 396 was faster . the trans. main case assembly could have came with that engine . and the original tail shaft used because of the shifter or the speedo cable outlet ?The vin number stamped on tail housing is my number . The car was only raced 3 years .I dont think anyone would have stamped a vin on a part in 1966 ,67,or 68 nobody cared . If the "P" number is the 10th month it would be a 66 main case , it has the 1 " cluster . I still think it is my tail housing .Comment
-
Re: Calling all Muncie experts .
Bill for more detail search Muncie on this site. That P01002 is very well documented and is Oct 02 1965 Assembly date at Muncie for a 66 Model year car. Wrong part for your car, you need a 1325 main case. In the case that you think the tail shaft is correct, first verify the part number is correct, and then there is a date code on the pass side. That is typically 2 months earlier than the build date of the trans. Get a close up of that - they can be decoded.Comment
-
Comment
-
Re: Calling all Muncie experts .
Bill,
The stamped date code, "P01002", on your 3885010 Muncie case has one extra digit by mistake. I believe it possibly should have been "P1002" (Muncie, Oct. 2nd) and here is why. I believe that the number "6" or maybe it is actually a "9" stamped upside down along with 2 dots (possibly September, 2nd week) located under the "NE" in "GENERAL" is a date code for either June, 2nd week, or more probably September, 2nd week.
On Ebay (see link below) there is a Muncie with a 3885010 case (1966 model year with incorrect tail shaft and side cover ) stamped "P1021" (October 21st) with "10" along with 1 dot (October, 1st week) located under the "NE" in "GENERAL". I believe that the large "9" under the "G" in "GENERAL" a mold number.
Other actual examples currently on Ebay:
P7B20 (Feb. 20th) and 10 with 1 dot (Jan., 1st week), 1967 model
P7R05 (Oct. 5th) and 9 with 3 dots (Sept. 3rd week), 1967 model
P0307 (Mar. 7th) and 2 with 3 dots (Feb., 3rd week), 1966 model
Dave
Last edited by David L.; March 30, 2014, 09:13 PM.Comment
-
Re: Calling all Muncie experts .
Thanks Dave , Joe ,Ron & Wayne I am sure you guys are correct it was just wishful thinking on my part . It makes sense because I know the original owners used a 66 427 . That answers the question of where it came from . Thanks for your help .Comment
-
Re: Calling all Muncie experts .
Dave - took a bit to understand what you said. Casting dates are in the side and in this case it is a 9. No question on the legitimacy of the P date, there are nearly a hundred know examples, not a Corvette of course.Comment
Comment