The 2003 Chevrolet Silverado 3500 is available as a 4-door, 5-seat regular side. Starting at $31,862, the 2003 Chevrolet Silverado 3500 LS 4x2 Crew Cab is powered by a 6.0L, 8-cylinder engine mated to a manual transmission that returns an EPA estimated The top of the line 2003 Chevrolet Silverado 3500 Base 4x4 Extended Cab, priced at $30,850, is powered by a 6.0L, 8-cylinder engine mated to a manual transmission that returns an EPA estimated