sorry, what did you do here?
swapped some cheapo drill motors for slightly more expenseive cheapo drill motors?

no offense meant, just a lot of writing about a simple thing.

I have been running 2 wheel drive 600 size 6volt motors at 24 volts for 6 months now, no big deal really, pushed pillow torque in a couple of fights... and ran well on plastic gears for 3 events.

I personally would use better motors on the gearbox you have, but thaTS JUST ME.