73 E body front disc brakes conversion on A body. Where did I mess up?

@jawbone
OK, I apologize in advance, but I am wondering why, with so many good options for A body disc brakes, would you try the E body route? I am NOT judging, I just want to know why? I went with the Stainless Steel Brake Corp kit, and it was super easy.

Because it’s literally the same spindle as the 73+ A body? And he’s using slider calipers which is the same as 73+ A body? And SSBC is a flaming disaster?