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Click on image for the lowdown. 
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| | | Forums66 Topics128,020 Posts1,055,345 Members48,420 | | 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: Jan 2008 Posts: 4,960 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,960 | 1950 didn't use a vent line. Only an overflow pipe. They had a vented cap. Make sure you have a vented cap. When emissions laws went into effect in 1971, vented gas caps were no longer used. Most parts houses don't have anyone that knows that GM used vented gas caps before then. | | |
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