just did the cooling system overhaul, minus the radiator. the radiator had recently been replaced by PO so i figured it would be ok. well now i am chasing down a small leak and i find the pictured. hard to get a good picture but that is bottom rail of the radiator, looks like three to four of those channels are discolored (rust) and they seem to stay moist. I think i already know the answer but figured i would ask any way. Time for a new radiator?