Got it all hooked up and plummed into the cooling system.. that little booger sucks up some water!
Ran the truck around the yard for about a half hour, the aftermarket temp gauge I hooked up rose and stayed steady in the 150 to 160 range, and no leaks.
Blows hot air.. dosen't leak.. looks like it belongs there.. i'll call this experiment a sucess!
My apologies to the purists out there.
