I am in the process of replacing the heater hoses in my 64 ac/roadster. My confusion comes from the clamps. The clamps currently are all incorrect. My new kit has 6 small spring and 4 large spring clamps. I also have 4 screw type. My question is the size of the hose from the expansion tank to the heater T. Should it be 1 5/8 or 1 3/4 , and which clamps should be used. Thanks