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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!
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| | | | Joined: Feb 2014 Posts: 31 'Bolter | | 'Bolter Joined: Feb 2014 Posts: 31 | Hi All,
I recently acquired a '53 GMC that is "partly" converted to 12V. As of right now, the ignition circuit and engine runs on 12V, but that's about the sum of it. In light of this (and my general inexperience with wiring), I'm planning to purchase a replacement harness in the coming weeks to help with the conversion and repairing the wiring. I noticed that Jim Carter and Classic Parts both offer 12V Alternator harnesses, but details on what they do and don't do are kind of vague. Generally Jim Carter seems to have higher quality and more experience with AD trucks, but the difference is almost $100. Has anyone had experience with either harness? Able to tell me about the goods, bad, and "others" with either harness?
'53 GMC 3100
"I think your obsession with auto shop stems from your unresolved feelings about your father"
-Bobby Hill
| | | | | Joined: May 2015 Posts: 11,178 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,178 | From what I can tell comparing the two is that the Jim Carter harness specifically mentions turn signal wiring, and they offer both GMC and Chevy harnesses, while Classic doesn't offer different harnesses for GMC and Chevy. Maybe the extra turn signal wiring is worth the extra money. Disclaimer: I have no experience with either one, having repaired and upgraded my original wiring harness myself.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Nov 1995 Posts: 5,746 24601 | | 24601 Joined: Nov 1995 Posts: 5,746 | I got the Jim Carter harness with the added turn indicator. I think Jim sources them from another vendor who is quite well regarded for their quality. I was quite pleased with the quality and the easy to follow directions.
And for what its worth, Jim Carter himself has been a greater supporter of Stovebolt.com for decades. Jim stands behind his stuff so if for some reason you have issues, his folks will work with you to make it right. He helped us during some rough times and has been a personal friend of mine for years.
I'm not sure but Jim might still be offering a 10 percent discount to Stovebolters.
John
~ John A kid raised on Hotwheels, Matchbox and Tonka cannot be reasonably expected to own only one vehicle as an adult. 1949 Chevrolet 3804In the Legacy Gallery | In the Gallery Forum1973 IH 1310 Dump1963 Kaiser M38A12001 International/AmTran RE3000 "Skoolie"2014 Ford E-350 4x4 (Quigley) | | | | | Joined: May 2015 Posts: 11,178 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,178 | FYI, Jim Carter does offer a discount to veterans and military. Call them to set that up.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Feb 2014 Posts: 31 'Bolter | | 'Bolter Joined: Feb 2014 Posts: 31 | Appreciate the responses, I probably will end up going with the Jim Carter harness.
'53 GMC 3100
"I think your obsession with auto shop stems from your unresolved feelings about your father"
-Bobby Hill
| | | | | Joined: Jan 2002 Posts: 2,845 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,845 |
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
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