Ford F Super Duty 1996–1998 — technical service bulletin
Bulletin 982119 · NHTSA communication 603682 · issued Nov 1, 1998
Technical service bulletin
communication type
Power Train
component
1996–1998
model years
3
vehicle entries
Official summary
Some vehicles may exhibit erratic 4-3 shift hunting while ascending a grade and/or no 3-4 upshift after cresting a grade. *yc
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.