Here's a little 6.5 history lesson.
'92-'95 Are OBD (on board diagnostics) I.
'96+ are OBD-II.
'92-'93 Have the DB-2 mechanical injection pump, but are otherwise similar to the '94-'95.
'94-'96 Have an in-adaquate cooling system that often resulted in overheating if one doesn't keep an...