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Click on image for the lowdown. 
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| | | Forums66 Topics128,077 Posts1,056,013 Members48,433 | | 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!
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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: Jun 2018 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2018 Posts: 52 | I am new to this forum. I recently purchased a '48 GMC Pickup with the 6 volt posite ground system. I will be converting to 12v. I also bought a factory wire harness and plan on rewiring the truck. I'm interested in switching to a negative ground system. What is required to do so? | | |
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