Putting a fan on top of Slipperential

[_paralyzed_]

It's not a bad idea, but you just pissed off BrianG

Heat is an inherent attribute of a slipper (friction) and so is wear. (why replacement parts are available)

Unless the heat is causing the handling of the of the vehicle to change I wouldn't bother.

But if it makes you feel better, go for it. Cooler is always better and will make things last longer, although it may just help "a little".

If you do please post up the temps you are getting now, and the temps you get after the fan. The more knowledge the better

Happy R/Cing