I hope you can see the yellow pneumatic compressors between the wishbones. These compressors are connected to each other by the black hose. The compressors somehow have a bit of resistance when the hose is full of compressed air. Therefor, they act like shocks.
These compressors move up and down smoother than Lego shocks, but they also give more resistance when compressed.
Originally, this was supposed to be for a pusher axle, and I was going to apply some small pneumatic cylinders so I could raise the wheels up and down. Then I remembered, I only have one cylinder... :/
(EDIT) After playing around with this for a little while, I decided that it might be best to use Lego shocks along with the compressors. This will allow the wheel assembly to hold more weight before collapsing and thus rendering itself completely useless.
Quoting Barry Williams
Simple and elegant . . . the mark of intelligent design. Did you ever apply this to a model?
Not yet. It is only practical in a small chassis. Due to the weight limit, me only having one small piston, and the way independent suspension behaves on uneven terrain, I have not found a use for it yet. Maybe using it for a pusher axle would be ok, but I have not planed any projects with a pusher axle in them yet.