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| | | Forums66 Topics128,110 Posts1,056,257 Members48,437 | | 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: Mar 2013 Posts: 186 'Bolter | | 'Bolter Joined: Mar 2013 Posts: 186 | I use a single shutoff as well. No need for dual vlavles if the first one is installed on the pressure side. Coolant won't reverse flow . All vehicles that have a shutoff only use one. I have a small leak in my heater core and it doesn't leak with the valve closed. If that helps.. | | |
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