Take a breather before this operation, because if you screw this up, you'll be waiting a long time for a new banjo bolt or a copper crush washer! (They don't carry these at the NAPA store.) Use a 7/16-inch wrench to tighten the banjo bolt over the copper crush washer. As you turn it into the caliper, just remember that the bolt is hollow and can't take a ton of force like a regular bolt. Did we mention you only have one try to crush the washer? It's not reusable and will leak fluid if you do. When you're done, snap in the ABS sensor harness and stick it back into the spindle clip.