RC Car (4WD)

This is my first full design for an RC car. Everything was was completely designed by me except for 2 parts, Part 001 and 004, those gears were taken and modified from BARSPIN, (Very nice guy check him out, https://www.thingiverse.com/barspin)

As This is my first design it is a work in progress and plan to update it as I find problems.
If you have any questions I would be happy to talk to you. If you have suggestions I'd love to hear them

Also everything is design to be easily printed on