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Click on image for the lowdown. 
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| | Forums66 Topics128,049 Posts1,055,741 Members48,426 | | 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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| THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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| | | Joined: Oct 2012 Posts: 271 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 271 | Thanks for the input and answers. I got back from lunch and hooked a vacuum gauge to input and output. Gauge moved. Not much but pulsing. I'm going to go for it. I'm sure these pumps probably never pumped a lot of pressure maybe 3-5 lbs. | | |
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