Well FLM included the wrong drive cups in the chassis package that have a 5mm ID. They won't fit the 6mm transmission output shaft.
So..........while they get that mess straightened out, there is time to play around with other ideas.
The main idea is to keep this truck low, with the center of gravity as low as possible.
One thing that helps stability, is the overall length and width of the truck.
I added wheel extenders to the setup which increases width by around 3 inches.
How durable will they be? hmmm..........we'll see. Thoughts?