Vintage Truck of the Day: International LDC On Long Grade – How Truckers Kept Cool Before Air Conditioning

I love this shot, of an International LDC slowly grinding up a long grade, in what looks like Arizona. You think it didn’t get boiling hot in that little cramped cab, barely moving while the big Cummins toiled away at full chat right under his feet? Here’s one obvious way to let some of the heat escape.