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Click on image for the lowdown. 
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| | | Forums66 Topics128,147 Posts1,056,805 Members48,454 | | 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!
| | 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! | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | What was the difference between the early AD Fresh Air heaters and the 1953-54 Fresh Air heaters?? I have one from a 1954 truck, but I notice they sell a heater core for heaters up to 1952. Is the core different? In the picture it looks the same to me.
John | | | | | Joined: Aug 2001 Posts: 1,300 'Bolter | | 'Bolter Joined: Aug 2001 Posts: 1,300 | Cores are different. Physical dimensions and the inlet outlet tube arrangement is different. | | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | The control cables are different, too. The cable controls the defroster pre-1953; and, the cable controls that interior/exterior-air door in 53-55.
| | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | Yeah mine is like the first picture with the 2 doors to allow it to recirculate interior air or bring it in from outside. I also have a nice recirculating heater with the round core, but the core is bad. :-(
John | | | | | Joined: Feb 2011 Posts: 39 New Guy | | New Guy Joined: Feb 2011 Posts: 39 | sorry if this is not a response but i am looking for a complete heater setup for my 1950 3600 and you guys sound like you know alot about em. there was nothing installed in the truck when i bought it including the controls, what should i look for and where? thanks aubrey | | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | That's a great bunch of pictures Brad.
John | | | | | Joined: Sep 2006 Posts: 3,596 'Bolter | | 'Bolter Joined: Sep 2006 Posts: 3,596 | Thanks John, I am trying to get some more filmstrips posted soon. | | | | | Joined: Jan 2006 Posts: 49 Shop Shark | | Shop Shark Joined: Jan 2006 Posts: 49 | anyone want to buy a rebuilt one? new core new 12V moor case powdercoated either in hammered silver, flat black or powdercoated grey epoxy primer( last forever as is or paint to match)
I have fresh air in both FA only or recirc style(18 month only) | | |
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