95 Chevy k2500 pickup Truck has heat and air all water hoses are off heater and radiator How do you route the water Thank You?

pretty straight forward as the rad hoses are much larger in diameter than the heater hoses,one goes at the top of the rad,one at the bottom,the 2 small hose ports don't matter- one goes in,one goes out,the heat doesn't care which way it goes.