Clutch Fan!

I had one on my old 71 Swinger. Worked great. While in service I drove a 78 dually with 440 and clutch fan. Thing sucked gas until a turbo muffler was put on. One time coming back to base after a job, all of a sudden heard a horrendous noise from under the hood. Quickly followed by an interior filled with fog and stinking of anti freeze. There was a one shop town with a population of mmaybe 10