Both sides are driven by a gearbox. You can see the chippy sticking out there. We only have one chip per side geared to go between 7-9fps (weight and time reasons). The forks themselves just have a chain running between both shafts,here's one of the
drive modules ,and there is a one 8" stroke pnematic cylinder per wheel. haha yea our pnematics guys had a
great time putting this one together.