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On a 1976 model the lower must have a spring but the upper doesn't need one. I understand that the water pump can suck the lower hose flat if it doesn't have a spring.
the water pump sucks from the bottem and if you dont have the spiral wire in the hos eit will collapse so be carfull and good luck. a replacement hose should come with one not 100% sure but i will find out soon sense i am getting new ones on the 15th.