I replaced my door striker bolts last year and just discovered that there are two types/sizes of door striker bolts for Fords a metric and standard version, I bought the metric version last year.
The correct type is 7/16"-14 (part- Help! #38448) and the part of the striker that "catches" the door is slightly smaller on the metric version, as well as the threads are slightly smaller.
The kicker is that the wrong metric version will thread easily and will tighten snugly but will not hold the door steady.
I just replaced both of them and the difference was amazing, the doors don't move at all now.
Something to check if you've got rattles.
The correct type is 7/16"-14 (part- Help! #38448) and the part of the striker that "catches" the door is slightly smaller on the metric version, as well as the threads are slightly smaller.
The kicker is that the wrong metric version will thread easily and will tighten snugly but will not hold the door steady.
I just replaced both of them and the difference was amazing, the doors don't move at all now.
Something to check if you've got rattles.