The 2006 Chevrolet Silverado 2500HD is available as a 2-door, 3-seat regular side. Starting at $26,395, the 2006 Chevrolet Silverado 2500HD LS 4x4 Regular 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 2006 Chevrolet Silverado 2500HD Work Truck 4x2 Extended Cab Short Box, priced at $24,515, is powered by a 6.0L, 8-cylinder engine mated to a manual transmission that returns an EPA estimated