What do these numbers mean? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BIGBLU 72 · 01-06-2010, 10:42 PM

There are numbers stamped into the cowl area on the drivers side of my 68! The numbers are 22 292? I have never seen anything like them. It's like they are stamped into the metal. Anyone have an idea what these are or what they mean?

oldblue1968chevy · 01-06-2010, 10:44 PM

m22 4spd and 292 inline 6 maybe

sounds legit to me lol

BIGBLU 72 · 01-07-2010, 01:18 AM

Yea it was a factory 6 cyl but it was a 3 on the tree

unclewatts · 01-07-2010, 04:53 AM

oldblue1968chevy · 01-07-2010, 11:26 AM

gear ratio or something was it a 250 or 292

BIGBLU 72 · 01-07-2010, 11:41 AM

I really can't remember. The 6 got pulled when I was really young for a 400. It did have 4:10 gears from the factory tho

**Palf70Step** · 01-07-2010, 01:21 PM

Quote:

Originally Posted by BIGBLU 72

There are numbers stamped into the cowl area on the drivers side of my 68! The numbers are 22 292? I have never seen anything like them. It's like they are stamped into the metal. Anyone have an idea what these are or what they mean?

Since it is stamped in, I would think it is the part number for that body panel

Tman · 01-07-2010, 04:15 PM

Just looked at mine, it has a 5 and 691. It is a 68 also. It is right on the curve at the front ds of the cowl where it goes from horizontal to vertical. Looks to be hand stamped, under original paint.

BIGBLU 72 · 01-07-2010, 04:20 PM

Yeah thATs the same thing

Keith Seymore · 01-07-2010, 04:40 PM

Tman and BigBlu -

Do either of you know which assembly plant your truck was built at?

K

Tman · 01-07-2010, 05:26 PM

J in the VIN = Janesville, correct? If so that is where it came from.

Brian

Tman · 01-12-2010, 01:09 PM

TTT Anyone else have any info on these numbers or any info on what they may be for.

Keith Seymore · 01-12-2010, 01:23 PM

Well....

I'm speculating here, but at many assembly plants the bodies are built in "CSN" order.

The "CSN" is the carrier sequence number, and is a number assigned based on the specific carrier (underbody support/welding fixture) that was used to weld the body up. It serves two purposes - one is identify the specific body before the VIN is affixed (which usually doesn't happen until the first operation in the Trim area) and - two - allows engineering and assembly to track any build/assembly issues back to a specific carrier, for problem diagnosis and resolution.

That could be what this number (or series of numbers) is but in Flint the small stamp was applied to the passenger side cowl rather than driver's side.

I held off answering because I'm just guessing on this one.

My $0.03 -

K

Tman · 01-12-2010, 02:00 PM

I made the mistake of looking at the spid for the assmebly plant, turns out the glove box door is from another truck. I checked the vin plate and it has a F in it, Flint? I was thinking that these numbers were some sort of tracking number, or possibly a quality control stamp. I had never noticed them on another truck, but I have never been this far into one before either.

PS by looking at where you work I would say your guess would be better that most!!!

Keith Seymore · 01-12-2010, 02:03 PM

Yes - F is Flint.

Probably not a quality control feature, as we wouldn't "deface" the truck with a stamp for quality identification. Typically it would be either an inkstamp in the appropriate area of the truck or a stamp/punch on the repair/inspection ticket (which is not let out of the plant).

K

01-06-2010, 10:42 PM	#1
BIGBLU 72 Registered User Join Date: Dec 2008 Location: Ashland, KY Posts: 700	What do these numbers mean? There are numbers stamped into the cowl area on the drivers side of my 68! The numbers are 22 292? I have never seen anything like them. It's like they are stamped into the metal. Anyone have an idea what these are or what they mean? __________________ 68 C10 LWB 2/4 drop 406/th400/3.73posi 04 Silverado SS LQ9 6.0/4L65e/4.11posi AWD

01-06-2010, 10:44 PM	#2
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	Re: What do these numbers mean? m22 4spd and 292 inline 6 maybe sounds legit to me lol __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

01-07-2010, 01:18 AM	#3
BIGBLU 72 Registered User Join Date: Dec 2008 Location: Ashland, KY Posts: 700	Re: What do these numbers mean? Yea it was a factory 6 cyl but it was a 3 on the tree __________________ 68 C10 LWB 2/4 drop 406/th400/3.73posi 04 Silverado SS LQ9 6.0/4L65e/4.11posi AWD

01-07-2010, 04:53 AM	#4
unclewatts 70 Chevrolet=Obsession Join Date: Jun 2009 Location: nice ca Posts: 1,067	Re: What do these numbers mean? __________________ I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner)

01-07-2010, 11:26 AM	#5
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	Re: What do these numbers mean? gear ratio or something was it a 250 or 292 __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

01-07-2010, 11:41 AM	#6
BIGBLU 72 Registered User Join Date: Dec 2008 Location: Ashland, KY Posts: 700	Re: What do these numbers mean? I really can't remember. The 6 got pulled when I was really young for a 400. It did have 4:10 gears from the factory tho __________________ 68 C10 LWB 2/4 drop 406/th400/3.73posi 04 Silverado SS LQ9 6.0/4L65e/4.11posi AWD

01-07-2010, 04:15 PM	#8
Tman Registered User Join Date: Mar 2006 Location: Reynolds, ND Posts: 78	Re: What do these numbers mean? Just looked at mine, it has a 5 and 691. It is a 68 also. It is right on the curve at the front ds of the cowl where it goes from horizontal to vertical. Looks to be hand stamped, under original paint.

01-07-2010, 04:20 PM	#9
BIGBLU 72 Registered User Join Date: Dec 2008 Location: Ashland, KY Posts: 700	Re: What do these numbers mean? Yeah thATs the same thing __________________ 68 C10 LWB 2/4 drop 406/th400/3.73posi 04 Silverado SS LQ9 6.0/4L65e/4.11posi AWD

01-07-2010, 04:40 PM	#10
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,226	Re: What do these numbers mean? Tman and BigBlu - Do either of you know which assembly plant your truck was built at? K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

01-07-2010, 05:26 PM	#11
Tman Registered User Join Date: Mar 2006 Location: Reynolds, ND Posts: 78	Re: What do these numbers mean? J in the VIN = Janesville, correct? If so that is where it came from. Brian

01-12-2010, 01:09 PM	#12
Tman Registered User Join Date: Mar 2006 Location: Reynolds, ND Posts: 78	Re: What do these numbers mean? TTT Anyone else have any info on these numbers or any info on what they may be for.

01-12-2010, 01:23 PM	#13
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,226	Re: What do these numbers mean? Well.... I'm speculating here, but at many assembly plants the bodies are built in "CSN" order. The "CSN" is the carrier sequence number, and is a number assigned based on the specific carrier (underbody support/welding fixture) that was used to weld the body up. It serves two purposes - one is identify the specific body before the VIN is affixed (which usually doesn't happen until the first operation in the Trim area) and - two - allows engineering and assembly to track any build/assembly issues back to a specific carrier, for problem diagnosis and resolution. That could be what this number (or series of numbers) is but in Flint the small stamp was applied to the passenger side cowl rather than driver's side. I held off answering because I'm just guessing on this one. My $0.03 - K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

01-12-2010, 02:00 PM	#14
Tman Registered User Join Date: Mar 2006 Location: Reynolds, ND Posts: 78	Re: What do these numbers mean? I made the mistake of looking at the spid for the assmebly plant, turns out the glove box door is from another truck. I checked the vin plate and it has a F in it, Flint? I was thinking that these numbers were some sort of tracking number, or possibly a quality control stamp. I had never noticed them on another truck, but I have never been this far into one before either. PS by looking at where you work I would say your guess would be better that most!!! Last edited by Tman; 01-12-2010 at 02:06 PM. Reason: add comment

01-12-2010, 02:03 PM	#15
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,226	Re: What do these numbers mean? Yes - F is Flint. Probably not a quality control feature, as we wouldn't "deface" the truck with a stamp for quality identification. Typically it would be either an inkstamp in the appropriate area of the truck or a stamp/punch on the repair/inspection ticket (which is not let out of the plant). K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ Last edited by Keith Seymore; 01-13-2010 at 11:09 AM.

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