I need (want) to replace my upper and lower hoses - lower is leaking. Car is a 73 Barracuda w/440. I have the correct big block radiator. Right now, I have Goodyear hoses (60659 lower and 60664 upper). I need to order some stuff from Rock Auto, but all they carry is Gates (20558 lower and 20949 upper). I cross-checked the hoses on the Gates site, and they showed "not exact duplicate". What brand does everyone else run? Does it matter?