Mazda B-Series Truck 1998–2000 — technical service bulletin
Bulletin 00600 · NHTSA communication 615638 · issued Dec 14, 2000
Technical service bulletin
communication type
Power Train
component
1998–2000
model years
3
vehicle entries
Official summary
Some 4x4 models may have a vibration at high speeds which may cause the transmission extension housing to leak or the transmission extension housing bushing to move out of position or become damaged. *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.