Used 2003 GMC Specs at Automotive.com
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2003 GMC Specifications

Discover all you need to know about the vehicle of your choice with detailed specifications. The 2003 GMC specs at Automotive.com include information on engine, transmission, drivetrain, color choices, standard features, available options, and more.
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Select a 2003 GMC model to view fuel economy, horsepower, and other used car specs.

FEATURED GMC SPECIFICATIONS

2003 GMC Sierra Specs 2003 GMC Sierra
Engines: 4.8L V8
Drivetrains: 2WD
MPG: 19 highway; 15 city
2003 GMC Yukon XL 2500 Specs 2003 GMC Yukon XL 2500
Engines: 6.0L V8
Drivetrains: 4WD
MPG: N/A highway; N/A city
2003 GMC Yukon XL 1500 Specs 2003 GMC Yukon XL 1500
Engines: 6.0L V8
Drivetrains: AWD
MPG: 16 highway; 12 city
2003 GMC Envoy XL Specs 2003 GMC Envoy XL
Engines: 5.3L V8
Drivetrains: 4WD
MPG: 20 highway; 15 city
2003 GMC Yukon Specs 2003 GMC Yukon
Engines: 6.0L V8
Drivetrains: AWD
MPG: 16 highway; 12 city
2003 GMC Envoy Specs 2003 GMC Envoy
Engines: 4.2L L6
Drivetrains: RWD
MPG: 22 highway; 16 city