Here's a couple more of the pins press fitted into the pinion. You can actually see a pin in the very top of the splines. That is put in by the factory (Mazda) which then goes through the torsion spring that goes down into the pinion. So my buddy replicated that and pressed in 2 more pins 180 degrees opposite of each other where the 2 pieces are separate and twists causing the play in the steering. They took the whole thing apart, pretty funny. Way beyond my scope and I imagine not typically done due to the tools/equipment needed for this method.