Had that in my G2R also. Great setup. Just make sure you use some sort of heatsink on the Quark and you should be fine. If you can mount it flat to the aluminum chassis that would ork perfectly without adding any weight for the heatsink.
Fun part about that setup is if you want to see it go balistic just drop in a 6s pack and drop a tooth or 2 on the gearing and you will have more power than any truck was ever meant to have.
