I have a gearing question
 

I have a new E-Maxx and use a MambaMax/ubes and ammo 36-56-2600 motor with 12-14 cells.
If my Motor really hot and my esc is warm/cool and the batteries are wram/normal, is it under geared or over geared

Sounds like too much load on the motor to me. Try a smaller pinion, or larger spur and see if that helps. Your truck will be slower, but the temps should be lower.

I'll try it? anyone have a 15t 32p 5mm pinion I can get cheap?