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The 2003 Silverado 3500 Regular Cab is a 2-door, 3-passenger full size pickup, available in two trims, the 4WD and the 4WD LS. The 2003 Silverado 3500 Regular Cab's closest competitors include the Dodge Ram 3500 Regular Cab 4X4, the Ford F-350 SD SuperCab 4x4, and the GMC Sierra 3500 Regular Cab.
Upon introduction, both trims are equipped with a standard 6.0-liter, V8, 300-horsepower engine. A 5-speed manual transmission with overdrive is standard, and a 4-speed automatic transmission with overdrive is optional.
The 2003 Silverado 3500 Regular Cab is freshened for 2003.