Design change of rear output shaft and oil pump replacement parts
Chevrolet technical service bulletin 030421004 for 1999-2002 Chevrolet Silverado and 1999-2002 GMC Sierra.
- Bulletin number
- 030421004
- Component
- Power train
- Summary
- Design change of rear output shaft and oil pump replacement parts. Tt
Owners of these vehicles have filed 430 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 1999-2002 1999200020012002
- GMC Sierra 1999-2002 1999200020012002
VIN decoder
See the problems and recalls for an exact car
Buying a used Chevrolet Silverado?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history