| |
Click on image for the lowdown. 
====
| | |
2 members (Gray_Ghost, Joe W),
211
guests, and
2
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,108 Posts1,056,231 Members48,436 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: May 2010 Posts: 14 New Guy | | New Guy Joined: May 2010 Posts: 14 | Does anyone know where I might get a copy of the wiring diagram for a 64 C50? | | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | It's likely to be the near the same as a pickup or other light duty chassis, You can download those from online sources and some are in here if you search. | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Are you trouble-shooting or rewiring?
Back in the early 80's when I was actually working as a truck mechanic I completely rewired a number of old trucks. A '58 Ford, a couple of early 60's Fords and a '53 International.
I essentially used a 50's Chevy car based diagram and modified as needed to support any differences. It worked out fine and a couple of those trucks were still available to work on that same farm the last time I visited a few years ago though I suspect they rarely actually move.
I couldn't tell if the boss was amused or bemused by my approach. But he worked those trucks either way.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: May 2010 Posts: 14 New Guy | | New Guy Joined: May 2010 Posts: 14 | thanks, I'll try to download one for a pickup. Right now I'm troubleshooting. The wiring is pretty hacked up on it now | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | I hate dealing with hacked up wiring. It wouldn't take much of that before I'd decide to rewire, but that's me...
A pickup diagram if you can find one should be very close to exactly what you need. It won't have things like electric shift for a 2-speed rear or the speedometer box that goes with that. Its possible you have a gauge or two that won't be represented, and of course there are lights that may not be on any diagram.
And any hacked up harness has some things added to it that may be incomplete and won't make any sense.
I once bought a truck and immediately upon getting it home spent a couple hours with my wire cutters just removing loose wires that didn't go anywhere any more.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: May 2010 Posts: 14 New Guy | | New Guy Joined: May 2010 Posts: 14 | that's where I'm at with this one, there are alot of wires cut and spliced and piggybacked etc.and some not going anywhere either. Hopefully I can find a diagram. thanks again | | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Then audey I would sure suggest you get yourself n EZ Wire kit and just start over. They have a circuit board, connectors, plenty of wire and room for a ton of electrical upgrades. About $160-175 and worth every cent. I love mine. | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Old wire deteriorates. Even if you sort out all the problems by the time the covering is 20 years old its just a failure waiting to happen.
Dave is correct, re-wiring is the most trouble-free answer.
In the past I've chosen to buy pieces and construct my own harness. I have the experience and training to make that work for me though its been decades now since I last did it. Most people should buy a commercial harness and follow the directions. Most likely I'll buy instead of build for my next one.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Sep 2006 Posts: 1,276 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 1,276 | In my opinion go with Dave and Qldsubs suggestions. I had a friend help me rewire my 64 GMC 6000 we constructed our own harness with a 21 circuit harness from E-Z Wire sitting on the bench. The E-Z Wire harness was for my 56 and we decided that it was too much for the 64 as I did not plan on power windows, A/C and such for the 64. I wish now we had just used the harness from the 56 by the time we finished the one we had constructed it had nickel and dimed me to death and we saved nothing. The E-Z Wire harnesses are by far the most inexpensive way to go, the quality is great and the price is right. They make a 12 circuit harness that is plenty for most and a 21 if you plan on adding power everything.
| | |
| |
| |