Differances in SPID'S - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Andy4639 · 02-22-2009, 05:53 PM

I started looking at the differances in the spids list in special-K post about them. Found some interesting stuff in just the couple I have and what was posted in his post.
These are mine I have.
This one is on the glove box of the 71 as of now.

Here are 2 that I pulled off other trucks. #1

#2

These are some in the other post, so if you see yours I posted it here for looking at the defferances.
special-K

LockDoc

Longhorn Man

Joesjunk

Lugnut64052

67chip72

Andy4639 · 02-22-2009, 05:59 PM

ChevLoRay

69gumby

70cstjr

The Tach numbers are differant, One is a 427 V-8 according to the spid Not a 427 diesel engine. So why are the #'s differant Huh?
LockDoc, this is what you posted tach U16AH
ChevLoRay, this is what you posted tach 4U16EA. Yours also has the speed warning listed too! 4 from bottom right. Best I can tell it's 4U15KA.
70cstjr has the tach as U16.
Tinted glass is differant.
Chrome front bumper is differant.
What is the defferance between all weather A/C and the 4 seasons A/C?
Custome Delux package #'s are basicly the same but aren't always spelled out. Guess maybe the differance between the day of the week they typed them up as when the truck was built.
Does anyone have a book that can confirm these numbers for us.

**1970cstblazer** · 02-22-2009, 06:29 PM

factorystock · 02-22-2009, 06:45 PM

The red door SPID looks strange. Never seen one double spaced with alignment issues. Definately has been on there for years, but my hunch is that the dealership, before deliverd to original buyer, may have redone the SPID when some equipment was changed out?

67_C-30 · 02-22-2009, 06:48 PM

Andy, the one thing I've noticed is that on the three 69's I have, all options began with a 4 just ChevLoRay's '69. I don't know why that is, but they do.

Andy4639 · 02-22-2009, 07:33 PM

factorystock,
the red door one isn't factory. That's the one I have and I typed it myself after I put some of that stuff on the truck.
I have noticed things that have abbrevated numbers and some with totally differant numbers. I wonder if it had to do with what day of the week it was built...like you never want a car built on Monday's or Friday's!
If you have your spid please post it here so we can all pick over the codes.

Andy4639 · 02-22-2009, 09:06 PM

ttt

71 super · 02-22-2009, 10:04 PM

Different factories did different things with the spid. In atlanta they only used the standard 3 letter id- U16 for tach, but baltimore for example used the prefix before and letters after the ption number or RPO- regular production option. Some plants used Cheyenne Super Sport others used cheyenne super on spid- both ye9 option number. I think the prefix/ suffix for lack of better term was a individual factory thing as all options are the same number except the one you created with different letters in front or after. So in short tinted glass is always A11 but it may have different numbers or letters in front or after - the key is what is in the middle

Andy4639 · 02-22-2009, 10:38 PM

Thank you!

That would explain a lot of the differances in the SPIDS.

ChevLoRay · 02-22-2009, 10:46 PM

The SPID I posted is from a truck that doesn't belong to me. I looked at my SPID and it also has the "4" preceeding the option. My truck was built at St. Louis, so as indicated above, maybe it was plant that determined whether it had that digit, or not. Maybe it was a reference to a day, or a shift, or a crew....regardless, it doesn't affect the item.

Nice posting to peruse the readin' material. We are an anal bunch, huh?

Andy4639 · 02-22-2009, 10:49 PM

Knowlege is a weird thing ant it!

Livrat · 02-22-2009, 11:05 PM

WOW.. learn something new everyday with these trucks.. Being more of a hot rodder and custom guy I never cared much what was factory or not so I never paid much attention to the SPID's before, Now I have to go dig out all my glove box doors take some pics for reference..

One thing I have noticed recently after parting out numerous 67/68 GMCs is most of them never had a SPID at all!!
Anyone else run across this??

**special-K** · 02-22-2009, 11:58 PM

Yeah,the 67/68 GMCs didn`t have them.Maybe some did.

nicks05z71 · 02-23-2009, 12:28 AM

My '68 chevy

Now that I look agian, it looks like I have the least options! But I have some odd ones in there, like Overdrive and Speed Warning.

tekno62 · 02-23-2009, 12:53 AM

this was a fun tread. love to know more about the options and spid.

Andy4639 · 02-23-2009, 01:41 AM

I wish there was a book or a website to look at and read about this stuff. I know I need to redo my SPID now too!

factorystock · 03-22-2009, 05:35 PM

The code system originated in 1963 but SPID decals in glove boxes were not installed in Chevy pickups till 1966.

02-22-2009, 06:29 PM	#3
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,444	Re: Differances in SPID'S __________________ 1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels

02-22-2009, 06:45 PM	#4
factorystock Registered User Join Date: Feb 2007 Location: west coast Posts: 3,369	Re: Differances in SPID'S The red door SPID looks strange. Never seen one double spaced with alignment issues. Definately has been on there for years, but my hunch is that the dealership, before deliverd to original buyer, may have redone the SPID when some equipment was changed out?

02-22-2009, 06:48 PM	#5
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Re: Differances in SPID'S Andy, the one thing I've noticed is that on the three 69's I have, all options began with a 4 just ChevLoRay's '69. I don't know why that is, but they do. __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 02-22-2009 at 06:50 PM.

02-22-2009, 07:33 PM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Differances in SPID'S factorystock, the red door one isn't factory. That's the one I have and I typed it myself after I put some of that stuff on the truck. I have noticed things that have abbrevated numbers and some with totally differant numbers. I wonder if it had to do with what day of the week it was built...like you never want a car built on Monday's or Friday's! If you have your spid please post it here so we can all pick over the codes. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-22-2009, 09:06 PM	#7
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Differances in SPID'S ttt __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-22-2009, 05:53 PM	#1
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Differances in SPID'S I started looking at the differances in the spids list in special-K post about them. Found some interesting stuff in just the couple I have and what was posted in his post. These are mine I have. This one is on the glove box of the 71 as of now. Here are 2 that I pulled off other trucks. #1 #2 These are some in the other post, so if you see yours I posted it here for looking at the defferances. special-K LockDoc Longhorn Man Joesjunk Lugnut64052 67chip72 __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. Last edited by Andy4639; 02-22-2009 at 06:00 PM.

02-22-2009, 05:59 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Differances in SPID'S ChevLoRay 69gumby 70cstjr The Tach numbers are differant, One is a 427 V-8 according to the spid Not a 427 diesel engine. So why are the #'s differant Huh? LockDoc, this is what you posted tach U16AH ChevLoRay, this is what you posted tach 4U16EA. Yours also has the speed warning listed too! 4 from bottom right. Best I can tell it's 4U15KA. 70cstjr has the tach as U16. Tinted glass is differant. Chrome front bumper is differant. What is the defferance between all weather A/C and the 4 seasons A/C? Custome Delux package #'s are basicly the same but aren't always spelled out. Guess maybe the differance between the day of the week they typed them up as when the truck was built. Does anyone have a book that can confirm these numbers for us. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. Last edited by Andy4639; 02-22-2009 at 06:14 PM.

02-22-2009, 10:04 PM	#8
71 super Registered User Join Date: Sep 2005 Location: Canton North carolina Posts: 3,079	Re: Differances in SPID'S Different factories did different things with the spid. In atlanta they only used the standard 3 letter id- U16 for tach, but baltimore for example used the prefix before and letters after the ption number or RPO- regular production option. Some plants used Cheyenne Super Sport others used cheyenne super on spid- both ye9 option number. I think the prefix/ suffix for lack of better term was a individual factory thing as all options are the same number except the one you created with different letters in front or after. So in short tinted glass is always A11 but it may have different numbers or letters in front or after - the key is what is in the middle __________________ 67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle

02-22-2009, 10:38 PM	#9
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Differances in SPID'S Thank you! That would explain a lot of the differances in the SPIDS. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-22-2009, 10:46 PM	#10
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: Differances in SPID'S The SPID I posted is from a truck that doesn't belong to me. I looked at my SPID and it also has the "4" preceeding the option. My truck was built at St. Louis, so as indicated above, maybe it was plant that determined whether it had that digit, or not. Maybe it was a reference to a day, or a shift, or a crew....regardless, it doesn't affect the item. Nice posting to peruse the readin' material. We are an anal bunch, huh? __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

02-22-2009, 10:49 PM	#11
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Differances in SPID'S Knowlege is a weird thing ant it! __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-22-2009, 11:05 PM	#12
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Differances in SPID'S WOW.. learn something new everyday with these trucks.. Being more of a hot rodder and custom guy I never cared much what was factory or not so I never paid much attention to the SPID's before, Now I have to go dig out all my glove box doors take some pics for reference.. One thing I have noticed recently after parting out numerous 67/68 GMCs is most of them never had a SPID at all!! Anyone else run across this??

02-22-2009, 11:58 PM	#13
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: Differances in SPID'S Yeah,the 67/68 GMCs didn`t have them.Maybe some did. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

02-23-2009, 12:28 AM	#14
nicks05z71 Registered User Join Date: Sep 2008 Location: Willard,Ohio Posts: 87	Re: Differances in SPID'S My '68 chevy Now that I look agian, it looks like I have the least options! But I have some odd ones in there, like Overdrive and Speed Warning. Last edited by nicks05z71; 02-23-2009 at 12:33 AM.

02-23-2009, 12:53 AM	#15
tekno62 Registered User Join Date: Nov 2008 Location: San Jose Ca Posts: 265	Re: Differances in SPID'S this was a fun tread. love to know more about the options and spid.



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02-23-2009, 01:41 AM	#16
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Differances in SPID'S I wish there was a book or a website to look at and read about this stuff. I know I need to redo my SPID now too! __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

03-22-2009, 05:35 PM	#17
factorystock Registered User Join Date: Feb 2007 Location: west coast Posts: 3,369	Re: Differances in SPID'S The code system originated in 1963 but SPID decals in glove boxes were not installed in Chevy pickups till 1966. Attached Images

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