SPID-Special? Keith S.? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

walkerb · 02-05-2016, 04:01 PM

So I took Keith's advice and made contact with the gentleman he recommend. Great guy and looks to be a great quality product.

I sent pics of my original 1974 SPID from the drivers inner fender. After the heavy duty clutch it lists $11.

He says he has seen over 800 SPID's from 67-86 and has never seen a dollar ($) symbol after anything or on any SPID?

Anyone else??????

Wonder what it means or why its there?

**Joesjunk** · 02-06-2016, 10:23 AM

Very interesting, never seen anything like that before

Keith Seymore · 02-06-2016, 08:34 PM

I checked the 1974 and 1975 generic info packets in the GM Heritage center archive; there was no mention of HD clutch RPO M01 in either one (although the '75 packet did show prices for the various RPOs).

My sense is that it is not a price, but some kind of processing code with a "$" as an indicator (we see that often, particularly in powertrain software, where symbols *&%$#@ are used to start the code and don't mean what they normally do in layperson's terms).

In any case I do not recall ever seeing that before, either.

K

80SPORT · 02-06-2016, 10:22 PM

M01 was the standard Chevrolet code for heavy duty clutch;I have seen it on Chevelles before.

Keith is likely right about the dollar sign being an indicator...I am speculating here but the 11 may refer to the clutch disc diameter for the HD clutch.

77 ChevySport · 02-07-2016, 08:46 AM

FWIW: The 1969 Corvette Code for "Heavy Duty Clutch" was "MA".

69 options.doc

Keith Seymore · 02-07-2016, 09:18 AM

Quote:

Originally Posted by 77 ChevySport

FWIW: The 1969 Corvette Code for "Heavy Duty Clutch" was "MA".

Attachment 1496783

"MA6" (apparently).

I think you left off a

K

walkerb · 02-07-2016, 10:44 AM

Quote:

Originally Posted by 80SPORT

M01 was the standard Chevrolet code for heavy duty clutch;I have seen it on Chevelles before.

Keith is likely right about the dollar sign being an indicator...I am speculating here but the 11 may refer to the clutch disc diameter for the HD clutch.

That makes sense it is a 11". Instead of a - they used a $?

02-05-2016, 04:01 PM	#1
walkerb Registered User Join Date: May 2010 Location: Rochester NY Posts: 831	SPID-Special? Keith S.? So I took Keith's advice and made contact with the gentleman he recommend. Great guy and looks to be a great quality product. I sent pics of my original 1974 SPID from the drivers inner fender. After the heavy duty clutch it lists $11. He says he has seen over 800 SPID's from 67-86 and has never seen a dollar ($) symbol after anything or on any SPID? Anyone else?????? Wonder what it means or why its there? Attached Images __________________ 1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed

02-06-2016, 10:23 AM	#2
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,697	Re: SPID-Special? Keith S.? Very interesting, never seen anything like that before __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

02-06-2016, 08:34 PM	#3
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,193	Re: SPID-Special? Keith S.? I checked the 1974 and 1975 generic info packets in the GM Heritage center archive; there was no mention of HD clutch RPO M01 in either one (although the '75 packet did show prices for the various RPOs). My sense is that it is not a price, but some kind of processing code with a "$" as an indicator (we see that often, particularly in powertrain software, where symbols *&%$#@ are used to start the code and don't mean what they normally do in layperson's terms). In any case I do not recall ever seeing that before, either. 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/

02-06-2016, 10:22 PM	#4
80SPORT Registered User Join Date: Mar 2008 Location: red deer alberta Posts: 777	Re: SPID-Special? Keith S.? M01 was the standard Chevrolet code for heavy duty clutch;I have seen it on Chevelles before. Keith is likely right about the dollar sign being an indicator...I am speculating here but the 11 may refer to the clutch disc diameter for the HD clutch.

02-07-2016, 08:46 AM	#5
77 ChevySport Registered User Join Date: Oct 2010 Location: Central, IL Posts: 201	Re: SPID-Special? Keith S.? FWIW: The 1969 Corvette Code for "Heavy Duty Clutch" was "MA". 69 options.doc



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