Jake,
I have some personal experience with a '65 L-78. My best buddy in high school had one for a while. We changed the clutch in it outside on the ground with 6" of snow and a blowing 20deg snowfall at 1am in his back yard. We ran the engine as long as possible for heat under the car while we were doing it. Of course, we were also fortified with our own antifreeze at the time. Everything turned out fine.
Verne
