Ford 1996 Windstar Manual page 18

Safety Restraints
Figure 2: Securing the detachable shoulder belt
Refer to the "Seats" section in the Features chapter of this
Owner Guide for information on removing and installing seats.
After re-installing the second row bench seat, make sure that the
safety belt is not twisted before you insert it into the detachable
anchor. A twisted safety belt may cause the retractor to work
improperly. Then insert the detachable anchor tongue into the
detachable anchor until you hear a "snap" and feel the latch
engage.
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