Were do I find one those at? Does the manual over ride mean I could have the fan turn all the time if the thermal solenoid unit went out? Having a spare new would be nice. I had the unit go out while I was 6 wheeling in the boonies and the truck was over heating, (Of course it is middle of summer here in AZ, so no surprise by that) finally got to where the trail was sorta smooth enough to run faster and out of 6 wheel drive. Finally cooled off enough by getting some air flow going into the radiator. Tried putting in the two spare fan bolts that are on top, but the fan just spun one out and the other was backing out. The truck sounded like i was killing cats by the time I turned the engine off. Got out to the pavement and was able to run it at 55 no problem back home. Thanks again for the help, Shotgun