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Click on image for the lowdown. 
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| | | Forums66 Topics128,048 Posts1,055,540 Members48,425 | | 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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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2010 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2010 Posts: 126 | I'm stripping out my engine compartment to prep/paint it, but I can't quite figure out how to get the heater off the firewall. I took out the bolts that attach it to the top of the firewall, and don't see anymore, but its tight on there and won't budge. It looks like maybe the ducting needs to be unscrewed behind the dash, but it also looks like it has a flange that won't fit through the hole in the firewall.
Whats the trick to getting the heater off the wall?
This is a '66 C10 with the heater in the engine bay.....
Thanks
| | | | | Joined: Feb 2010 Posts: 38 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2010 Posts: 38 | There are 2 studs that go through the firwall into the cab. You have to remove the nuts from inside the cab. They may be hidden by the firwall pad.
The glass is twice as big as it needs to be.
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