Ford Explorer 1998–1999 — technical service bulletin
Bulletin 12521 · NHTSA communication 6091767 · issued Mar 1, 1999
Technical service bulletin
communication type
Power Train
component
1998–1999
model years
6
vehicle entries
Official summary
Vehicles with limited slip / traction-lok rear axles may exhibit a chatter noise while turning. *tt
Vehicles covered
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.