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Service bulletin 031000

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id617686
Published by NHTSA2001-03-22
Manufacturer's number031000
Manufacturer's date2000-10-03
NHTSA componentPOWER TRAIN:AXLE ASSEMBLY

NHTSA's summary

INFORMATION ON AXLE ASSEMBLIES EXPERIENCING SMALL PINION BEARING FAILURE ON 7.6 INCH AXLES INSTALLED IN 1998 THROUGH 2001 MODEL YEAR VEHICLES. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Axle

Vehicles listed
CHEVROLET M/L
CHEVROLET S/T PICKUP
GMC M/L VAN
GMC S/T PICKUP

Listing a model year does not mean every vehicle of it is concerned: the document says which.