Ford E-450 1996–2000 — technical service bulletin
Bulletin 13822 · NHTSA communication 620274 · issued Mar 1, 2001
Technical service bulletin
communication type
Power Train
component
1996–2000
model years
5
vehicle entries
Official summary
Some vehicles with model 80 rear axles only may exhibit a whine above 35 mph. *tt
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.