The 2005 Chevrolet Silverado 3500 is available as a 4-door, 5-seat regular side. Starting at $31,660, the 2005 Chevrolet Silverado 3500 LS 4x4 Regular Cab is powered by a 6.0L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2005ChevroletSilverado 3500Base 4x2 Crew Cab Dual Rear Wheel , priced at $ 31,420 , is powered by a 6.0L , 8 - cylinder engine mated to a manual transmission that returns an EPA estimated