I really need some help:

Currently, I have a SC10 4x4 with a Traxxas Velineon motor/ ESC setup using the optional 18t pinion from my Slash 4x4 and AE's 32P spur gear. The problem is that the ESC and motor are running extremely HOT (motor is about 220 F & ESC 154 F). I'm guessing my gearing is the problem. What would you suggest I use instead? By the way, I am using a 2s lipo to power truck.

Thanks,
JD