I just picked up a 97 this past weekend. It has quite a bit of rust under the front bumper area. I changed the oil today and while I was down there I noticed the bottom of the radiator was pretty rusty looking and pretty brittle to the touch. I am planning on flushing the coolant but do u thing I should just replace the whole dam thing. And if I do should I flush before I change the radiator just to make sure no old fluid from the engine goes I to the knew one? Trying to bring this baby back to life she needs lots of love. Came from Hawaii to Cali so has a few busted rusty parts.