Anyone know a good source for wiring diagrams? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tim240Z · 11-19-2005, 03:24 PM

Been thinking about this and searching the internet, but have yet to find anything.
Everytime a do a OEM conversion, I end up buying the FSM just to get the PCM pinouts and wiring diagrams. My last conversion (the 99 Burb drivetrain into my 71 C20), I bought the Helms manuals directly from Helms. The wiring schematics are terrible. So.....instead of buying the FSMs, is there a source for just decent wiring systems schematics?
Surely someone out there specializes in wiring diagrams.....anyone know of a place to contact?
Tim

cypress TX 72 · 11-19-2005, 03:37 PM

Jim Osborne Reproductions, Inc.
101 Ridgecrest Drive
Lawrenceville, Georgia 30045
Office 770-962-7556
Fax 770962-5881

Tim I have always used the diagram out of the service manuel, and it seems to be the best one. However this guy above sells just the diagram, It looks to me like the same diagrams from the GM service manuels.
I think he sales them for $11 or so.
I think you can buy them from LMC or Golden State and places like that as well.
TS

LUV2XCLR8 · 11-19-2005, 03:40 PM

It Sounds like more pictures that need to be added to the FAQ's,
unless of course it is already in there, that area sure is growing.

Tim240Z · 11-19-2005, 03:43 PM

What I am looking for is a diagram that has more than one system on it. The FSM for the 99 Burb has the diagrams split by system which makes tracing them a real PITA!!

cdowns · 11-19-2005, 03:46 PM

just buy the factory service manual they're are always a ton on ebay you get the wiring diagrams and a whole lot more //best $25 you'll spend on your truck resto projects

Tim240Z · 11-19-2005, 04:58 PM

The FSM for the 99 Burb was a 4 book set (each the size of a yellow/white pages)!!! and they were way in excess of $25....closer to $100. I wonder if the Haynes or Chiltons will have any 'simplified' wiring diagrams?

roj2323 · 11-20-2005, 02:35 AM

i don't know how good or accurate it is but i found this in my favorite places so it must be there for a reason.

http://www.geocities.com/chevroletc1070/wiringdias.html

69TowRig · 11-20-2005, 11:42 AM

I will tell you that the diagrams are poor for the '69 that GMC Paul's sells. My book did not come with any of the front harnesses (lights, engine). Does someone else sell a book with the ENTIRE truck's wiring depicted in it?

Tim240Z · 11-20-2005, 12:24 PM

I went ahead and bought a diagram from http://www.ahdol.com/
I had an email with a 2MB pdf file within 1 hour...now that's what I call service. It was ~$14, and the diagrams are clear and concise!!!

Tim

drh1485 · 12-14-2005, 09:23 AM

Go to the website for EZ Wire. They have it on CD and it is very good.

11-19-2005, 03:24 PM	#1
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Anyone know a good source for wiring diagrams? Been thinking about this and searching the internet, but have yet to find anything. Everytime a do a OEM conversion, I end up buying the FSM just to get the PCM pinouts and wiring diagrams. My last conversion (the 99 Burb drivetrain into my 71 C20), I bought the Helms manuals directly from Helms. The wiring schematics are terrible. So.....instead of buying the FSMs, is there a source for just decent wiring systems schematics? Surely someone out there specializes in wiring diagrams.....anyone know of a place to contact? Tim __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

11-19-2005, 03:37 PM	#2
cypress TX 72 Saving one 72 at a time!! Join Date: Sep 2005 Location: Cypress, TX Posts: 261	Re: Anyone know a good source for wiring diagrams? Jim Osborne Reproductions, Inc. 101 Ridgecrest Drive Lawrenceville, Georgia 30045 Office 770-962-7556 Fax 770962-5881 Tim I have always used the diagram out of the service manuel, and it seems to be the best one. However this guy above sells just the diagram, It looks to me like the same diagrams from the GM service manuels. I think he sales them for $11 or so. I think you can buy them from LMC or Golden State and places like that as well. TS

11-19-2005, 03:40 PM	#3
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,482	Re: Anyone know a good source for wiring diagrams? It Sounds like more pictures that need to be added to the FAQ's, unless of course it is already in there, that area sure is growing. __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

11-19-2005, 03:43 PM	#4
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Re: Anyone know a good source for wiring diagrams? What I am looking for is a diagram that has more than one system on it. The FSM for the 99 Burb has the diagrams split by system which makes tracing them a real PITA!! __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

11-19-2005, 03:46 PM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Anyone know a good source for wiring diagrams? just buy the factory service manual they're are always a ton on ebay you get the wiring diagrams and a whole lot more //best $25 you'll spend on your truck resto projects __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

11-19-2005, 04:58 PM	#6
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Re: Anyone know a good source for wiring diagrams? The FSM for the 99 Burb was a 4 book set (each the size of a yellow/white pages)!!! and they were way in excess of $25....closer to $100. I wonder if the Haynes or Chiltons will have any 'simplified' wiring diagrams? __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

11-20-2005, 02:35 AM	#7
roj2323 Senior Member Join Date: Mar 2004 Location: Somewhere Posts: 985	Re: Anyone know a good source for wiring diagrams? i don't know how good or accurate it is but i found this in my favorite places so it must be there for a reason. http://www.geocities.com/chevroletc1070/wiringdias.html

11-20-2005, 11:42 AM	#8
69TowRig Senior Member Join Date: Jan 2005 Location: Raleigh, NC Posts: 894	Re: Anyone know a good source for wiring diagrams? I will tell you that the diagrams are poor for the '69 that GMC Paul's sells. My book did not come with any of the front harnesses (lights, engine). Does someone else sell a book with the ENTIRE truck's wiring depicted in it? __________________ -Chris Building a stripper, one part at a time: 1969 K5, 307, 3spd, 3 seats, hard top. Added Pwr Discs, Pwr Steering, Aux Battery, T-case Skid, Lighted Sidemarkers, HEI, Lock-Right Diff, ECE Class IV Hitch, 32" MT/Rs. Parts to Install: Hand Throttle, Console, Tow Hooks, Dual Horns, AM-FM, Dealer Swing-Away Tire Carrier, Gas Tank Skid. Also building a 1950 Willys CJ-3A and off-roading a 2001 Nissan Frontier on 1-Ton Portals...

11-20-2005, 12:24 PM	#9
Tim240Z Senior Member Join Date: Jan 2005 Location: LAX area, So Cal Posts: 499	Re: Anyone know a good source for wiring diagrams? I went ahead and bought a diagram from http://www.ahdol.com/ I had an email with a 2MB pdf file within 1 hour...now that's what I call service. It was ~$14, and the diagrams are clear and concise!!! Tim __________________ 1972 Suburban C20 454/TH700R4, eaton-corporate 4.10 (looking for 3.7) Sold: 71 Cheyenne 20 Installed a 99 5.7L L31/4L60E from Suburban 1500 (2005)

12-14-2005, 09:23 AM	#10
drh1485 Registered User Join Date: Mar 2005 Posts: 10	Re: Anyone know a good source for wiring diagrams? Go to the website for EZ Wire. They have it on CD and it is very good.



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