1998 f150 4.2. Just a reminder flush the radiator and change fluid once in awhile. I do it once a year. That stuff gets nasty. I flushed and put in that green 50/50 stuff. However, this time I over turned the plastic drain screw at the bottom of the radiator and broke it. It was only a two dollar piece but had to go back to auto part store so be careful. Also swapped out serpentine belt, you don't want to have that break on you while your driving. 20bucks for belt and 16bucks for two gallons of antifreeze. 30min job.