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

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

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)