yes there is a lot more to it but it can sorta be done. to start with the pedal that holds both beaters is called the slave unit.
what you can do is buy the slave unit for your pedal and the one that you have now should have a little peice sticking out at the top right, right outside of where the bearing is at and that is where you atach the connecting rod.
if you talk to your local music shop that sells
pearl stuff you should be able to order the slave unit but I am here to tell you that you could probably buy the whole thing new for close to the same price.