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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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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!
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: Mar 2010 Posts: 10,270 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,270 | If your cap has blue plastic on the underside, simply drill a 1/8" hole in the blue plastic just off the center of the round blue piece. Air will now be able to vent in and out as originally intended.
I have done this on four different trucks. Works like a champ.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
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