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Click on image for the lowdown. 
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| | | Forums66 Topics128,094 Posts1,056,157 Members48,436 | | 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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | It's the knob on the cable to open/shut the "door" on the front of your deluxe heater. On earlier years the knob/cable open/shut the defrost diverter (in 54/55 the defrost diverter is a knob/lever right on the heater and it is moved by hand).
Tim | | |
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