Are the Corbin, spring ring clamps, actually correct for 57 heater hoses and by pass hose. Or were they the replacement type? The parts book picture shows shows Corbin for 58 - 59 but the poor quality picture of earlier models seems to show a different type. Could they originally have been tower or band type?
I THINK that these are the correct clamps.....
https://www.dennis-carpenter.com/en/trucks/heater-amp-ac/heater-hose-amp-clamps/bpa-18572-heater-hose-clamp-58
Thanks. Sounds right. I need to change mine.