[Adrian Clark]

The first thing I notice is that you could easily save a lot of weight by pocketing out your module plates more. I wouldn't be surprised if you could cut the weight of the top plate in half.

The other thing I notice is that it looks like the plate sprocket mounted to the wheel module is flush with the module top, not giving clearance for chain. It could be the angle of the render making it look like that, but form the angles you've show it doesn't look like there's room for the chain to wrap around the sprocket.

Lastly, I would switch your pneumatic cylinder to something more compact, like a pancake cylinder. I know you're using that specific cylinder because you're using AM shifter parts, but with that cylinder sticking so close to the ground it's just asking to get whacked off.

-Adrian