[boomboom]

I have a 98 Durango that overheats after driving for 15 miles. It has 5.9L engine. I have replaced the thermostat, belt, and clutch fan. Still the same problem. I think it may be a cracked head or bad head gasket, but when I change the oil I did not see any water in it. I also do not see any oil in the coolant. Any ideas on what I should check before I tear into the engine?

Thanks.