I am needing some help here. Does anyone know what the ID of our hoses are?

 

does anyone have a set of calipers they can go out and measure the neck on the radiator? I am going to go get a set tonight I guess just so I can measure it, if noone has a set they can measure for me. Thanks again

 

Just so everyone knows. the radiator neck is 1 3/8". So I would have to say the ID of the radiator hose is 13/8" also.