Its maddening trying to adjust door latch without the alignment tool, but can be done. On my coupe I eyeballed the adjustable striker for vertical alignment with the latch in the door, with door nearly closed. Loosening striker bolts enough for gentle hammer taps to move it, tweak it up-down, in-out til latch engages upon closing door. My door adjustmnebnt is close, requireing a moderately firm pressure of my hand as door comes closed. Otherwise, the door bounces when slammed shut, latch catching at door not fully cl;osed. Passenger side door does latch without the hand presssure.