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8 members (Nick in Manitou, GMCJammer51, 68ironhead, Ridgeback, 66flea, 3B, KEVINSKI, 1 invisible),
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Mod | | | Forums66 Topics128,169 Posts1,057,033 Members48,458 | | 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: Dec 2007 Posts: 45 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2007 Posts: 45 | My 261 has two ports near the oil line that feeds the external oil filter. One is a 1/4" the other is a 1/2". I'm not sure if they are on a common gallery or different/ I would suspect that the 1/4" pot is the proper choice. Anyone KNOW for sure is intended for the oil pressure gauge? | | |
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