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October 1, 2003 Service bulletin

Driveline characteristics for four-wheel drive (4WD) system

Chevrolet technical service bulletin 030421007 for 2004 Chevrolet Colorado and 2004 GMC Canyon.

Bulletin number
030421007
Component
Power train: driveline
Summary
Driveline characteristics for four-wheel drive (4wd) system. Tt

Owners of these vehicles have filed 31 complaints in the transmission category.

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