Tell me about these firewall markings - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Keith Seymore · 09-22-2015, 03:46 PM

Post some pics.

Usually they are option codes, or a heads up for downstream workers on paint colors and such.

http://67-72chevytrucks.com/vboard/s...light=sequence

http://67-72chevytrucks.com/vboard/s...light=graffiti

http://67-72chevytrucks.com/vboard/s...light=graffiti

http://67-72chevytrucks.com/vboard/s...light=graffiti

http://67-72chevytrucks.com/vboard/s...light=graffiti

They will not match the VIN. Nobody in the vehicle assembly plant cares about the VIN - everything is keyed off the build sequence (or manifest sequence) number. The build sequence number is an attempt to control the flow of subassemblies into the main line, and keep everything in order.

The VIN is just a part to be installed on that particular build, just like a tune up label, SPID label or Mulroney window sticker.

K

Keith Seymore · 09-22-2015, 03:49 PM

My truck happened to be "number 87" -

VIN is HFxxx388.

K

Keith Seymore · 09-28-2015, 10:18 AM

Quote:

Originally Posted by Keith Seymore

09-22-2015, 03:46 PM	#1
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,167	Re: Tell me about these firewall markings Post some pics. Usually they are option codes, or a heads up for downstream workers on paint colors and such. http://67-72chevytrucks.com/vboard/s...light=sequence http://67-72chevytrucks.com/vboard/s...light=graffiti http://67-72chevytrucks.com/vboard/s...light=graffiti http://67-72chevytrucks.com/vboard/s...light=graffiti http://67-72chevytrucks.com/vboard/s...light=graffiti They will not match the VIN. Nobody in the vehicle assembly plant cares about the VIN - everything is keyed off the build sequence (or manifest sequence) number. The build sequence number is an attempt to control the flow of subassemblies into the main line, and keep everything in order. The VIN is just a part to be installed on that particular build, just like a tune up label, SPID label or Mulroney window sticker. 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; 09-23-2015 at 07:29 AM.

09-22-2015, 03:49 PM	#2
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,167	Re: Tell me about these firewall markings My truck happened to be "number 87" - VIN is HFxxx388. 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; 09-22-2015 at 04:31 PM.



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