Hi. I just posted some photos of mu truggy in show-n-tell but have a

Hi. I just posted some photos of mu truggy in show-n-tell but have a question that i dont know its because of my hardware or my printing.
I used a keda20-22l and 20a esc for the car. I know its not the right things but i had to try it. The thing is, the first times i ride it it seem to have more power, then i broke the part that grab the wishbone and redid all the inside gears and they were moving a lot easier. But now in some places the 4 wheels stop and only the drive wheels move i think. Is it because my motor dont have enough torque/strengh?
Thanks