@inspiron108, I believe, the best you can do with ratchets is what @James6555 said: high speed moving in one direction and high torque moving in another direction.
Also, were you planning to use two motors per side or two motors total - one for the left and one for the right side?
If two motors total, then having an option to choose between high speed and high torque going in either direction is not possible without an additional motor or pneumatic piston to shift between modes.
You will need additional motor one way or another. If you want to learn more theory about shifting and non-shifting transmission, here is the link to the thread from 2016:
In that thread I have linked multiple examples of the transmission designs as well as the theory why popular planetary or friction based two speed transmissions could not work without locking or shifting (high output resistance will backdrive weaker power input).
It also has an example of working two speed transmission that uses worm gear that, if you think about it, would be equivalent to the two way ratchet functionality. However, it wasn’t very practical because worm and worm gear have a lot of friction losses and are not easy to build with.
So, you are thinking in the right direction about using ratchets to help transmission not to backdrive one of the inputs under high loads, but there are limitations which may be too much of the inconvenience for the regular gameplay. Such drivetrain may be only compatible with very specific game strategy, where you need to drive fast only in one direction.
That would require much more complex mechanism similar to the Centrifugal Clutch. You, probably, don’t want to go that way. But if you try, we will be thrilled to see the results.