i have a 1997 F-250 super duty 7.3 4x4 that wont go into 4 wheel drive. it is manually locking hubs and manual shift 4 wheel
there is a TSB (technical service bulletin) on this:http://www.ford-trucks.com/tsb/fulltext/index.php?a=view&p=by_year&y=1997&m=F-250%20HEAVY%20DUTY
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