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| | Forums66 Topics128,052 Posts1,055,738 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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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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| | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | redbird That first one is a summer heater shut-off, so you don't have a warm heater in hot weather. The second is a heater thermostat control to moderate your heater output. Both can be eliminated but you'll have some summer heat. | | |
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