Tony,

I did check the spur/pinion gear mesh, but did not go down a tooth or two on the pinion.
From what I understood, is that if the gearing ratio is over geared or under, then the motor would be the one too get way to hot.

Checking the temp on the motor once the ESC shutoff, the motor was only at 170F, that's why I was wondering if it was the batteries or something with the ESC.

But I will try to go down two teeth on the pinion and double check the mesh. As well as check the drivetrain and fluids. Was going to put some higher weight diff. fluid in anyways.

P.S. The fan is indeed running.