Home » Public Forums » GMCnet » [GMCnet] Trivia Question
[GMCnet] Trivia Question [message #321985] |
Sat, 12 August 2017 20:07  |
Olly Schmidt
 Messages: 1265 Registered: February 2014 Location: Germany and Scottsville, ...
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My 23's VIN ends with 2572 and starts with 033 telling me it is a 73
23'. Looking at http://gmcmhregistry.com/Trivia.html it is being said
that only 2059 were build in 73.
How does this work out? Anyone care to enlighten me.
--
Best regards
Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA
'76a Eleganza II, Oasis, LV,NV
'73 Sequoia, VA
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Best regards
Olly Schmidt
PGP Key ID: 0x18a9 3a1f 4196 bf22
'76a Eleganza II, VA
'73 Sequoia, SH, Germany
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Re: [GMCnet] Trivia Question [message #321988 is a reply to message #321986] |
Sat, 12 August 2017 22:01   |
Richard Denney
 Messages: 920 Registered: April 2010
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That's my understanding as well. But the issue is that only 2059 coaches of
any length were built in '73, making it curious to find a sequence number
in the 2500's in the '73 model year.
I sorta doubt there were 500 prototypes (I recall 20 with production serial
numbers), but did they start with TZE0x3V100000?
Rick "only 461 '73 230's" Denney
On Sat, Aug 12, 2017 at 8:36 PM Gary Kosier wrote:
> I would say the numbers were consecutive regardless of coach length.
> Only the prefix changed to indicate the chassis difference.
> Of course, I could be wrong again.
>
> Gary Kosier
> 77PB w/500Cad
> Newark, Ohio
>
> --------------------------------------------------
> From: "Peer Oliver Schmidt GMC"
> Sent: Saturday, August 12, 2017 9:07 PM
> To:
> Subject: [GMCnet] Trivia Question
>
>> My 23's VIN ends with 2572 and starts with 033 telling me it is a 73
>> 23'. Looking at http://gmcmhregistry.com/Trivia.html it is being said
>> that only 2059 were build in 73.
>>
>> How does this work out? Anyone care to enlighten me.
>> --
>> Best regards
>>
>> Peer Oliver Schmidt
>> PGP Key ID: 0x83E1C2EA
>>
>> '76a Eleganza II, Oasis, LV,NV
>> '73 Sequoia, VA
>>
>> _______________________________________________
>> GMCnet mailing list
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--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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Re: [GMCnet] Trivia Question [message #321990 is a reply to message #321985] |
Sat, 12 August 2017 22:52   |
mrgmc3
 Messages: 210 Registered: September 2013 Location: W Washington
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Peer Oliver Schmidt wrote on Sat, 12 August 2017 20:07My 23's VIN ends with 2572 and starts with 033 telling me it is a 73
23'. Looking at http://gmcmhregistry.com/Trivia.html it is being said
that only 2059 were build in 73.
In this era GM would typically start a production sale able series with vin 0001 and run more or less consecutively to the the last number in that model year. 23 and 26 foot models would be mixed together. They would have built maybe a dozen or so prototypes for early development that would not have had a production type vin. They would have built pilots where the vin began with 0001 and might have built as few as 10 and maybe as many as 25 of this level. Regular production would then commence with 0026 or the appropriate next number. The pilot level vehicles were probably never sold to the public. There is no way they would have built 500 pre production vehicles, they never have for any model.
Please clarify what you mean by the statement your vin begins with "033", it should start with "TZE". The last 8 characters should be 3V102572 if it is a 73. If it's 4V102572 then it's actually a '74.
Chris Geils - Twin Cities / W Wa
1978 26' Kingsley w/ very few mods; PD9040, aux trans cooler, one repaint in stock colors, R134a, Al rad, Alcoas, 54k mi
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Re: [GMCnet] Trivia Question [message #321992 is a reply to message #321990] |
Sun, 13 August 2017 01:23   |
Olly Schmidt
 Messages: 1265 Registered: February 2014 Location: Germany and Scottsville, ...
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Chris Geils via Gmclist schrieb/wrote
> The last 8 characters should be 3V102572
That is my number.
--
Best regards
Peer Oliver Schmidt
the internet company
PGP Key ID: 0x83E1C2EA
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Best regards
Olly Schmidt
PGP Key ID: 0x18a9 3a1f 4196 bf22
'76a Eleganza II, VA
'73 Sequoia, SH, Germany
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Re: [GMCnet] Trivia Question [message #321993 is a reply to message #321990] |
Sun, 13 August 2017 03:08   |
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USAussie
 Messages: 15912 Registered: July 2007 Location: Sydney, Australia
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G'day,
I forwarded this to Bill Bryant and asked him to comment.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Chris Geils via Gmclist
Sent: Sunday, August 13, 2017 1:53 PM
To: gmclist@list.gmcnet.org
Cc: Chris Geils
Subject: Re: [GMCnet] Trivia Question
Peer Oliver Schmidt wrote on Sat, 12 August 2017 20:07
> My 23's VIN ends with 2572 and starts with 033 telling me it is a 73
> 23'. Looking at http://gmcmhregistry.com/Trivia.html it is being said
> that only 2059 were build in 73.
In this era GM would typically start a production sale able series with vin 0001 and run more or less consecutively to the the last
number in that model year. 23 and 26 foot models would be mixed together. They would have built maybe a dozen or so prototypes for
early development that would not have had a production type vin. They would have built pilots where the vin began with 0001 and
might have built as few as 10 and maybe as many as 25 of this level. Regular production would then commence with 0026 or the
appropriate next number. The pilot level vehicles were probably never sold to the public. There is no way they would have built
500 pre production vehicles, they never have for any model.
Please clarify what you mean by the statement your vin begins with "033", it should start with "TZE". The last 8 characters should
be 3V102572 if it is a 73. If it's 4V102572 then it's actually a '74.
--
Chris Geils
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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Re: [GMCnet] Trivia Question [message #322008 is a reply to message #321993] |
Sun, 13 August 2017 11:53   |
bryant374
 Messages: 563 Registered: May 2004 Location: Pleasant Valley, NY 12569
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Here is what I think I know.
GaryK you are right, the TZE sequence number was reset at the start of each model year.
ChrisG, a nice precise description of how the numbers work.
I have been told the first 20 1973 TZEs were used for testing and destroyed. That agrees with the TZE numbers we have a record of. The earliest TZEs we know of are 21, 22, 23, 24 and were all built 11-14-72.
Both 1973 & 1974 have coach TZEs higher than the recognized total.
If you have your glove box sticker, "Service Parts Identification" there is lots of info there.
I have the glove box image for TZE063V103035 with a build date of 110173, so we know the 73 TZE numbers went at least that high.
BACKGROUND;
The SOURCE of all the BUILD numbers we know are from a document dated 10-18-79 provided by Alex Birch. Alex (RIP) was an early GMC MH Engineer involved in early build, testing & demonstrations and had provided many first hand accounts of early GMC Motor Home history.
Details especially for the first two production years are difficult to come by, most of those first hand accounts have disappeared. Likely confusion may also have been caused by a production stoppage in Dec. 1973 and again early 1974 due to the gas crises and surplus GMC inventories at Gemini. Dave Greenberg and I spent many hours attempting to get to the facts,often with little success.
Here is my SPECULATION (based on many random details, but few direct facts);
A block of TZE sequence numbers were released to the production line each Monday. GMC MH production in 1973 was not a steady stream but with many new processes to learn and running changes one would expect different build qtys. likely week to week. Still they had to have a block of numbers available should they build the max.
My belief is that the unused numbers in each weeks allotment may have been left unused and were discarded, the next weeks block of numbers assigned for that week ignoring the unused gap, etc., etc., etc.
The 1975 thru 1978 TZEs appear to have been controlled much better.
And then there are the anomalies that don't fit no matter what you believe;
A 1973 23' with a 26' TZE
a 1978 PB with TZE168V100000, This was at a Texas GMCMI rally parked next to my coach, asking the owner about it, he had no idea.
A couple with nonTZE formats, who knows. If in doubt check the frame stamping (upside down, drivers side frame below the "sink window".
If you are now more confused, sorry. Check with me at the Elkhart,IN GMCMI rally in Sept.
Bill
Bill Bryant
PO 1976~PB (owned 34 years)
1914 Ford (owned 70 years)
1965 Corvette (owned 39 years)
GMC Motorhome History
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Re: [GMCnet] Trivia Question [message #322010 is a reply to message #322008] |
Sun, 13 August 2017 13:25   |
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Matt Colie
 Messages: 8547 Registered: March 2007 Location: S.E. Michigan
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Bill Bryant of Sun, 13 August 2017 12:53 not quoted due to length.
While I know that what Bill has posted is accurate, in my experience with the Detroit OEs, there is no reason to expect a VIN to be "serial".
With most Detroit production, the VIN is assigned when the order is placed. It may not have anything to do with the build order. Often builds are delayed for many reasons. A common one is that a specific part is in short supply. (Or, the assembly plant is too busy to deal with engineering orders.)
When I ordered both program and personal vehicle, as soon as the order was accepted, I would be given a VIN and an expected build date. The initial build date was about a joke. One of the program truck builds was supposed to be early in the run and be used as a final validation. It was delayed, and delayed until the build was scheduled in August. I got my manager to cancel the order (and then it went up two bosses above that) because there would no longer be time for a two month long validation before the model year closed.
A build for a personal car was delayed because it was actually a race car in street clothes and they had to hand build part of it. It still came with the ordered VIN.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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Re: [GMCnet] Trivia Question [message #322012 is a reply to message #322010] |
Sun, 13 August 2017 13:44   |
James Hupy
 Messages: 6806 Registered: May 2010
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Not to throw more mud on an already murky picture, but what about Trans
modes in early production years. Those airporter and postal vehicles and
radio station and military application vehicles that were not finished into
a motor home. Were their TZE numbers part of the original runs, or
different? If the first part of their Vin was ZEO 6083 OR ZE0 6583 for 23
footers, then perhaps the last part of the Vin was not consecutive. I sure
don't know. I have seen some wacky stuff with GMC VIN NUMBERS. Often new
owners ask me about their coach after they purchase it, and the coaches
have been extensively altered from how it left the factory or upfitter. It
is impossible to tell some of them if the glove box sticker or build sheet
is missing.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Aug 13, 2017 11:26 AM, "Matt Colie" wrote:
> Bill Bryant of Sun, 13 August 2017 12:53 not quoted due to length.
>
> While I know that what Bill has posted is accurate, in my experience with
> the Detroit OEs, there is no reason to expect a VIN to be "serial".
>
> With most Detroit production, the VIN is assigned when the order is
> placed. It may not have anything to do with the build order. Often builds
> are
> delayed for many reasons. A common one is that a specific part is in
> short supply. (Or, the assembly plant is too busy to deal with engineering
> orders.)
>
> When I ordered both program and personal vehicle, as soon as the order was
> accepted, I would be given a VIN and an expected build date. The initial
> build date was about a joke. One of the program truck builds was supposed
> to be early in the run and be used as a final validation. It was delayed,
> and delayed until the build was scheduled in August. I got my manager to
> cancel the order (and then it went up two bosses above that) because there
> would no longer be time for a two month long validation before the model
> year closed.
>
> A build for a personal car was delayed because it was actually a race car
> in street clothes and they had to hand build part of it. It still came with
> the ordered VIN.
>
> Matt
>
>
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
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Re: [GMCnet] Trivia Question [message #322041 is a reply to message #322008] |
Sun, 13 August 2017 22:16   |
Olly Schmidt
 Messages: 1265 Registered: February 2014 Location: Germany and Scottsville, ...
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Bill,
thank you for your detailed description. It makes sense. Especially the
part of allotting a number of VINs for the production floor, and
discarding those that weren't used. If 3000 is one of the later ones, my
25xx is probably one from the middle 60-75% :-)
Thanks again, and everybody have a great week.
--
Best regards
Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA
'76a Eleganza II, Silverlake Recreational Area, Mesa Park, CA
'73 Sequoia, VA
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Olly Schmidt
PGP Key ID: 0x18a9 3a1f 4196 bf22
'76a Eleganza II, VA
'73 Sequoia, SH, Germany
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Re: [GMCnet] Trivia Question [message #322119 is a reply to message #322012] |
Mon, 14 August 2017 21:34  |
bryant374
 Messages: 563 Registered: May 2004 Location: Pleasant Valley, NY 12569
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Jim,
Maybe I can shed some light, at least that is my intent 
All 1973 & 1974 coach TZEs I have come across have been the "standard" 0X3 or 0X4 which denotes a GMC Motor Home interior for those two years. I believe for these two years if you wanted something special you would buy a Motor Home, remove the interior and build whatever you needed.
In 1975 thru 1978 the TransMode was offered (with a unique TZE, (#3) in place of the (1)). With very few options offered (how many windows or doors do you want?) it should have been much simpler to build and ship an empty coach. Controlling the TransMode TZE #set I would guess should have been a simpler effort.
Bill Bryant
PO 1976~PB (owned 34 years)
1914 Ford (owned 70 years)
1965 Corvette (owned 39 years)
GMC Motorhome History
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