Step 3: Swap out the guts
Heads up: the placement of the orange thing is key to how well the pedal will fit to the base. I screwed up a bit here but it didn't turn out too bad. I would recommend putting the pedal on the base before you drill any holes, then tape the orange piece in the right place. Remove the pedal and mark with a pencil where you need the holes.
The hole for the spring is actually a ring that i carved out with the dremel. If you don't have a dremel you'll have to come up with some crafty way to carve that ring out.