C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Obsolete GM part numbers

Thread Tools
 
Search this Thread
 
Old May 18, 2010 | 10:29 AM
  #1  
garyguinn's Avatar
garyguinn
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2007
Posts: 802
Likes: 69
From: Tulsa Ok
Default Obsolete GM part numbers

Hi guys, When using the Assembly manual and Chevrolet Illustrated parts catalog.....tons of the part numbers are obsolete...Does anyone have the GM
part supersession (supercedes?) catalog? Most of the Assembly manual drawings don't have specs on the screws/nuts/rivets...just generic description and p/n......
I'm working on 68/69/75

thanks,
Gary Guinn/Tulsa
Reply
Old May 18, 2010 | 11:56 AM
  #2  
gbvette62's Avatar
gbvette62
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2000
Posts: 12,666
Likes: 3,122
From: Shamong, NJ
Default

Years ago, GM use to print a "Parts History Catalog". They were issued on a semi-annual basis and listed all part numbers changed or discontinued. These books contained a numerical list of part numbers with either "discontinued", or the new part number, listed in the next column.

GM also printed the "Dealer Parts and Accessories Price Schedule". These were a little more complete than the Parts History Catalog. Besides the numerical parts number lists and whether the part was discontiuned or the number changed, it contained the date the action accured. The Price Schedule books also had the then current list and wholesale price, the GM division(s) that used the part, the part's Group number, and where/how it was warehoused.

The Parts History and Dealer Price Schedule books are no longer printed. GM stopped printing all paper catalogs in the mid 80's. GMs current data system only lists recently discountinued part numbers, or the changed/superseded part numbers for parts that are still available.

GM hardware is listed in Parts Group 8.900. Unfortunetly, Parts Group 8.900 is not found in Corvette Body and Chassis Parts books (or any other GM vehicle parts books). Group 8.900 was only found in the "Standard Parts Catalog". The Standard Parts Catalog lists all hardware (nuts, bolts, screws, washers, etc.), along with paints, cleaners, labels and manuals. Group 8.900, lists hardware by the type of piece it is, not by part number. You need to know that the fastener your looking for is a chromed, phillips, pan head, machine screw to find it's part number and size. Every fastener is listed by type; phillips head, Torx, allen head, hex head, captive washer, serrated washer, lock washer, nylon nut, self-locking nut, aluminum rivet, steel rivet, machine thread, sheet metal thread, etc, etc, etc,..... It's not the easiest thing to match a part number to a fastener, but it can be done.

Like all other GM Parts books, the Standard Parts Catalogs haven't been printed in over 20 years. The Standard Parts Catalogs are also pretty hard to find, but if you come across one, it's definately worth grabbing.
Reply
Old May 18, 2010 | 04:00 PM
  #3  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,235
Likes: 4,325
From: Westminster Maryland
Default

Hi Gary,
I've found that the Paragon and Dr. Rebuild catalogues have quite a few of the bolts and nuts we need listed with the fasteners size and thread. Not all, but a lot.
They're another place to look beyond gbv's suggestion.
Regards,
Alan
Reply
Old May 18, 2010 | 06:00 PM
  #4  
oldsarge's Avatar
oldsarge
Race Director
10 Year Member
 
Joined: Aug 2007
Posts: 10,977
Likes: 19
From: Canboro Ontario
Default

Paragon also offers a laminated poster that shows all the bolts, useage and head type, I have one on my wall in the garage, it is a great guide to the fasteners used.
Reply
Old May 18, 2010 | 07:16 PM
  #5  
Duke94's Avatar
Duke94
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Default

I have a copy of The "Standard Parts Book" section 8.900 from 1981. I tried to find the correct length bolts for my 71' based the the part number in the AIM but very few were listed. The scan below is an example of what's in the book. It also has all kinds of other "standard parts" nuts, washers, screws, clips, plugs, rivets, fuses and more. The materials and finishes are also specified. If you have a part number, I'll see if it is in there. The book seems to be geared more for service parts than OE stuff. I know that GM most always releases a different part number for service stuff even though it's identical to OE.

Gary


Last edited by Duke94; May 18, 2010 at 07:18 PM.
Reply
Old May 19, 2010 | 04:32 PM
  #6  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,235
Likes: 4,325
From: Westminster Maryland
Default

Hi Gary,
Thanks for taking the time to post the picture.
I've heard about the 'Standard Parts Book' but haven't seen one before.
NICE!!
Regards,
Alan
Reply
Old May 19, 2010 | 05:01 PM
  #7  
markdtn's Avatar
markdtn
Le Mans Master
10 Year Member
 
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Default

Either the GM Parts Direct or Scoggin-Dickey website used to do the crossover for you.
Reply
Old May 20, 2010 | 12:51 PM
  #8  
garyguinn's Avatar
garyguinn
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2007
Posts: 802
Likes: 69
From: Tulsa Ok
Default

Thanks for all the replies.....I'll check into the Paragon poster as well..
This forum is great... Now if I could just all three of these vettes done! ;-)
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-3

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-4

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-5

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
Old May 20, 2010 | 06:29 PM
  #9  
Duke94's Avatar
Duke94
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Default

If you want correct nuts and bolts, contact Richard Fortier (past owner of Paragon). He sells nuts and bolts out of his house in Fenton, MI. and must have a million of them. Nice guy and very knowledgeable. richfortier@chartermi.net
I have his phone number at work if you would rather call him.

Gary
Reply

Get notified of new replies

To Obsolete GM part numbers





All times are GMT -4. The time now is 10:05 AM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-5
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE