Where to get a UBEC

[BrianG]

It might work. The peaks were at 2.4A, but the average was at 0.6A. If you use a capacitor on the UBEC, it will really help absorb some of those current transients. A value from 1,000uF to 4,700uF should do nicely. The majority of the current draw is when steering under heavy load. To do this, I had the truck sitting motionless and then manually held the tires somewhat firmly.