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63 & 64 Bowties · 05-13-2014, 08:21 AM

Interesting. Just a wild guess here from an ex-truck driver:
Could that be an air heater of some kind? The modern air dryers have only been around for about 40 years, so this may be what pre-dated the air dryer. If that's what it is, it would be there to keep the moisture in the air brakes from freezing in winter.
Like I said, just a wild guess.

05-13-2014, 08:21 AM	#3
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: What the heck is this? Interesting. Just a wild guess here from an ex-truck driver: Could that be an air heater of some kind? The modern air dryers have only been around for about 40 years, so this may be what pre-dated the air dryer. If that's what it is, it would be there to keep the moisture in the air brakes from freezing in winter. Like I said, just a wild guess. __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi