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Click on image for the lowdown. 
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12 members (Gdads51, greenie-reddy, Simso, Joe H, 1955 1 Series, Southerntruck, Gib70, 3B, Peggy M, Oswald, Jon G, 1 invisible),
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Mod | | | Forums66 Topics128,103 Posts1,056,183 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!
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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 2011 Posts: 150 Shop Shark | | Shop Shark Joined: Jun 2011 Posts: 150 | Found the problem. There is supposed to be a 1/4NTP plug in the back of the block (under the cyl head but near the oil sender) that allows the oil gallery for the sender to be drilled. During a previous lifetime, some idiot had jammed a 3/8-16 plug into it. I pulled it out and tried to seat it and could tell things were not fitting correctly so I ran a 1/4-14NTP tap in the hole. What do you know? It fit correctly. Then I measured the plug and could see that it was a 3/8-16. Got the correct plug and everything is fine now. Kind of scary what some nimrods will try to get away with. 
Last edited by Baba; 12/06/2012 6:39 PM.
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