Jeep Grand Cherokee 1996–1998 — technical service bulletin
Bulletin 9821 · NHTSA communication 601254 · issued Apr 21, 1998
Technical service bulletin
communication type
Power Train
component
1996–1998
model years
3
vehicle entries
Official summary
Specifications and service procedures used in the current service manuals are being revised to provide improved differential bearing life. *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.