Midnight Rider how did you go about pinning the fan clutch i live in the heart of the heat in az and i am thinking of the same thing
thanks
Dave
If you think your clutch is OKAY, then get a junker (or several) from a mechanic/garage to experiment on.
With the clutch on the bench, fan off, usually on the radiator side will be some flat territory.
Center-punch for at least four (more if there is room) holes through the flat areas.
Drill appropriate sized holes through the cover, that can be tapped for 5/16 bolts.
Thread the holes.
With plenty of thread-locker, tighten the bolts into the holes (short bolts that will bottom out against the cover, once snug).
You will feel the bolts pressing the clutches together; just keep tightening until everything bottoms out.
Put her on the engine and give it a test.
Check the bolts several times a day, for the first couple days, then once a day for a week, then each time you check the oil.
If a bolt backed out, it might eat a radiator.
If the cover is too thin to take threads, I have drilled completely through everything, in minimum of three spots, and put bolts (grade 8) through the whole thing, with LOCKED nuts on the other side.
Once you have a direct-drive fan, that is the END of all that clutch slipping nonsense.