The fan by the radiator seems to be running extremely high. Doesnt matter if it is in park, or if I am accelerating, the fan is real loud and seems to be running way to fast. Was very noticable when compared to a Chevy 1500, both in park. Any ideas as to what is causing this problem?

Welcome to AF, if the engine is not overheating or the ac running in hot weather this is the usual faulty fan issue with our trucks, a scan should be done 1st to make sure all is ok, then replace the fan.

I had this hooked up to a scanner and they said it was the Fan Clutch. Does this sound right? How easy are these to change myself and where is the best place to get these?

All the parts house carry these, not an easy job, about 2 hours, go to autozone.com, repair guides fro the info.